Tips to use with Microsoft Word

You've added several commonly-used commands to the Quick Access Toolbar (QAT) in Word and PowerPoint. You'd like to add a few of the MathType commands as well. Note: In the remainder of this section we'll refer to Word, but the same points apply to PowerPoint.

The QAT was introduced as part of the Microsoft Office Ribbon user interface with the release of Office 2007, and continues in the most recent versions of Office. Its default location is the upper left corner of the Word window, but you can optionally change its position to beneath the ribbon (Windows only).

Windows-only: It's always important to plan for the unexpected. So what happens if you open Word tomorrow and all your nice QAT customizations are simply gone? You panic, right? Then you throw the computer through the window. No, of course not. You take a deep breath, then restore your QAT from the backup file you made.

C:\Users\[username]\AppData\Local\Microsoft\Office

Thanks to Allen Wyatt for his article Copying the Quick Access Toolbar, from which some of the information above was taken.

Word has three types of automatic correction: AutoFormat, AutoText, and AutoCorrect. You can set your preferences for AutoFormat and AutoCorrect by selecting "AutoCorrect Options..." from the Proofing tab in Word Options (Word Preferences/AutoCorrect on Mac). Even though you are changing the settings in Word, the settings will take effect in all Office applications.

Differences are numerous between the three types of automatic correction, but there are similarities as well. The names of the three types of correction give some hint as to their purpose:

AutoFormat

With AutoFormat, Word will apply each formatting style as you type. This is a source of frustration for many Word users. This feature is the one, for example, that continues a numbered list after you type the first number in the list. Let's say you are typing a math test and are numbering the first question with this format: (1). When you press the spacebar after the closing parenthesis, Word assumes you are beginning a numbered list and that you want the list to be formatted with the List Paragraph style. Thus it will indent the line accordingly, and format the beginning of subsequent paragraphs with similarly-formatted numbers. This may not be what you want, since you may have more than one paragraph in the question (as in a word problem), or you may need a new paragraph to list multiple responses.

Since AutoFormat cannot be used to automatically insert objects such as MathType equations, we will focus the remainder of the Tip on the other two automatic corrections -- AutoText and AutoCorrect.

AutoText

The second type of automatic correction provided by Word is AutoText. AutoText is useful for replacing short text strings with several words or paragraphs.

For example, if your name is Frank James and you need to enter your name and address several times whenever you prepare a particular type of document, you can have Word offer to make the replacement for you every time you type the text Frank. Sometimes you will want to write your name without your address, of course, so a nice feature of AutoText is that Word will display a pop-up asking if you want to make the substitution. When the pop-up appears, simply keep typing if you don't want Word to make the replacement. To make the replacement, press F3 (Windows only), Enter , or Tab .

This feature can produce surprising results, such as if you were creating a table with the first names of several people as table headings. If you type Frank, followed by the Tab key to move to the next column, Word inserts your full name and address. Any time Word makes an unwanted correction, you can reverse the correction by selecting Undo from the Edit menu, or by typing Ctrl+Z (Mac Cmd+Z ).

In general, AutoText isn't as useful as AutoCorrect for technical papers, but it has some features that make it more attractive than AutoCorrect in specific situations.

AutoCorrect

The third type of automatic correction available in Word is AutoCorrect. This type of automatic correction is typically used to correct commonly misspelled words (such as "teh" when you meant to type "the"), incorrectly capitalized words (such as "archaeopteryx" when you meant to type "Archaeopteryx") or for entering common symbols by typing their text counterparts (such as entering © by typing "(c)" or entering ¢ by typing "c/"). AutoCorrect will replace a simple text string with a character, word, phrase, or even paragraphs of text.

Both AutoText and AutoCorrect can be used to insert clip art, drawings, or MathType equations. In this article, we discuss using these features with MathType

AutoText is very useful for inserting common symbols or formulas with just a few keystrokes. Here we'll see how to set up AutoText to insert MathType equations, and how to use this feature in your own Word documents.

Although these steps here are specific to Word 2016 for Windows, instructions are similar for Mac Word 2016, and for versions of Word 2007 and later for Windows. Please see the Microsoft article about AutoText for differences. Keep in mind that we often use the word "equation" to mean anything created with MathType whether or not there is an equal sign.

Setting up the AutoText entry:

Insert a MathType equation into your document.
Select the equation by clicking on it once. (If you're on a Mac, skip to the Mac section after Windows step 5.)
(Windows) In the Text group of the Insert tab, click quick Parts. Hover over AutoText and click "SaveSelection to AutoText Gallery". Skip to Step 4.
(Mac) In the Insert menu, click AutoText/New. Type the replacement text in "Name". That's it! Skip to the next section.
(Windows) In the Create New Building Block dialog,type the replacement text in "Name". Create a new category for math objects if you want, otherwise, leave it at the default "General".
(Windows) Notice if you go back to Quick Parts/AutoText Gallery, there's a preview of your new AutoTextentry. (Skip to the next section.)

Using the AutoText entry you just created:

In your document, when you type the first 4 letters of your AutoText replacement string, Word offers to replace the string with your AutoText object or text string. Press Enter, Tab, or F3 (Windows only)to make the replacement.
Once the replacement is made, either continue typing or insert another object.

Using MathType with AutoCorrect is very similar to using MathType with AutoText, but since AutoCorrect doesn't give you the option whether to make the replacement, AutoCorrect is often used for common substitutions or for misspellings. Excellent uses of AutoCorrect for technical documents abound; some suggestions are listed here:

The list is literally endless, but these suggestions give you an idea of the great utility of AutoCorrect when used with MathType To insert a MathType object into your AutoCorrect list, follow this process...

Insert a MathType equation into your document.
Once the replacement is made, either continue typing or insert another object.
(Windows) On the File tab, click Options. When WordOptions opens, click Proofing on the left, then AutoCorrectOptions.(Mac) In the Tools menu, click AutoCorrect Options.
(Windows) Notice our equation is already in the preview window. There's no way to paste an object there; this is there because you selected it in step 2.
(Mac) Notice our equation is not visible in the preview window. To make this more confusing, what is in the "Replace" window is --> (which is the first entry in the list). Still, the equation is in the preview(the "With" window), but you can't see it.
Type your desired replacement text in the "Replace:"window. Since this is the equation for a circle centered at the origin, we've chosen cir as our replacement text.
Notice if we scroll down in the list, the equation isn't shown; it just says *EMBED Equation.DSMT4 ***.	Windows: Mac:
To use the AutoCorrect entries, type the replacement text (cir in this example), and when you type a word terminator¹, Word will replace the replacement text with the equation.

¹A "word terminator" is anything that terminates a word as you type. When you're typing text for example, Word knows you have completed the current word when you type any punctuation symbol, space , Tab , or Enter . Any of these keys and symbols will cause Word to immediately make an AutoCorrect replacement if one exists.

There is an important distinction between AutoCorrect and AutoText we've already been mentioned, but is important enough to repeat. AutoCorrect does not give you the option of whether or not to make the replacement. It immediately makes the replacement upon typing a "word terminator". You can still undo the replacement as with AutoText (by typing Ctrl+Z or Cmd+Z ), but it's best to only put those items in AutoCorrect that you will want to replace every time.

Because Word makes the correction immediately upon encountering a word terminator, it's essential that you don't choose a title for an AutoCorrect entry that will be a word in normal text. For example, if you want to enter the quadratic formula, $\frac{-b\pm \sqrt{b^2-4ac}}{2a}$, don't call it "quad" or "quadratic". Both of those are likely to appear as words, and you don't want the formula to replace the word at the least opportune time! In this case, it's much better to choose a title like "qu" for the replacement. Remember, although the letter combination qu will appear often in documents, it will never appear as a word. Therefore, whenever you type the letters qu, followed by any word terminator, Word will make the substitution and insert the formula. It will not make the substitution when you type the word quadratic, the word quick, or any other word that contains the letters qu.

See the next section below for some specific suggestions on when to use AutoCorrect and when not to use it.

Now that you are familiar with the methods of automatic correction in Word, here are some suggestions for use, as well as some specific examples.

When to use MathType with AutoText and AutoCorrect

These are suggestions for using AutoText and AutoCorrect, but when should you use MathType with it? When you insert math and science symbols and equations, right? Not necessarily. You could use MathType for example, to insert the Greek letter π. Your document will be smaller and operate faster though, if you would insert pi by using the Insert Symbol command (from the Insert menu). You could also switch to Symbol font, type the letter p, and switch back to the font you're using for your document. Note that it's not incorrect to use MathType in this case, it's just that there's a better way to do it.

Here are some suggestions for when not to use MathType (The suggestions apply generically within a document, even if you're not using AutoCorrect.)

Note: When converting a Word document to HTML, text with super/subscript formatting will look different in Word when compared to the HTML document and to a MathType equation. Compare the three examples below (shown larger than normal):

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Although the difference is easily noticeable, it is not necessarily an objectionable difference. That's for you to decide, but you should at least be aware of the difference.

These are very specific suggestions, but hopefully you can see the general cases for each. Remember document stability, size, and simplicity are all optimized when inserting technical expressions as plain text whenever possible. Now let's take a look at some specific examples when AutoText and AutoCorrect can come in very handy.

Example 1:

You are preparing a fractions quiz for your sixth-graders, and you want to create two versions of the quiz, which will contain mixed number multiplication problems as well as fraction division problems. Having just read through this tip about AutoCorrect, you realize this is a perfect use of the feature. You decide to enter 5 different fractions and 5 different mixed numbers, as well as the multiplication and division symbols and a blank answer space into AutoCorrect. You choose the fractions $\frac{1}{2}$, $\frac{2}{3}$, $\frac{3}{5}$, $\frac{4}{7}$, and $\frac{5}{6}$, and the mixed numbers $1\frac{1}{2}$, $2\frac{2}{3}$, $2\frac{4}{7}$, $3\frac{3}{5}$, and $3\frac{3}{4}$. To use logical names, you name them 1/2, 2/3, etc. for the fractions, and 11/2, 22/3, 24/7, etc. for the mixed numbers. Since the letters m and d will never appear alone in the text of a document, you use "m" for the AutoCorrect entry for the multiplication symbol (×) and "d" for the division symbol (÷). You also want to leave 10 underscore characters for the student to write the answer, so you type 10 underscores, highlight them, select Tools/AutoCorrect Options, and call it "ans".  So now you're ready, and you enter "1/2 m 3/5 = ans " for the first question. In your document, you see $\frac{1}{2}\times \frac{3}{5}=\underset{¯}{}$.

Try it out: Use MathType and AutoCorrect to enter the fractions and mixed numbers shown above, as well as the multiplication and division symbols. Use Insert/Symbol in Word to enter the two symbols. Be sure to highlight the symbol before you select Tools/AutoCorrect Options. Use whatever shortcut names are logical to you, either the ones we suggest above or your own. Finally, enter the answer blank into AutoCorrect as described above, then try it out. See how easy it is to make a 10-question quiz using MathType and AutoCorrect.

Example 2:

You want to create a test to see if your students understand proportions. You decide to create some blank macros in MathType so that you only have to fill in the empty slots to complete the problems. You enter 4 blank proportions into MathType Large Tabbed Bar:

MathType for Windows	MathType for Macintosh

You wonder if this is a good application for AutoCorrect or AutoText, but your colleague points out that if you define these as AutoCorrect entries, you'll still have to edit them after you enter them into the Word document. It would be much better to just leave them on the MathType Large Tabbed Bar, and insert them separately as MathType objects, since that would be much quicker than using AutoCorrect or AutoText entries.

As a general rule, you should never use AutoCorrect or AutoText for something that will have to be edited after it's inserted into the document.

When using MathType with Word:

In most cases, you'll find AutoCorrect superior to AutoText:

However, in some instances, AutoText is better:

You're inserting numbered equations into Word using MathType numbering system. Some "equations" are actually more like a step-by-step solution, with each step on a separate line, but all in one MathType object. When you close MathType to insert the object into Word, the equation number is vertically centered on the group rather than aligned with the bottom line of the solution. Something like this:

You want equation number (3.1) aligned with the bottom line.

MathType employs two different types of alignment. Horizontal alignment includes options such as "Align Left" and "Align at =", among others. Vertical alignment includes "Align at Top", "Align at Center" (the default), and "Align at Bottom". All of these settings are in MathType Format menu.

With the multi-equation object open in MathType change the alignment to "Align at Bottom". For our example, we would see something like this:

After doing that, this is what that line in our Word document looks like:

Mission accomplished! One final note though...

Notice MathType "status bar" in the screen shot above. The "status bar" is the bottom of a software window, and often contains helpful information and notes about the document or equation, or about what's beneath the mouse pointer. Pointing to "Align at Bottom", the status bar tells us this command will "Align the bottom of a pile or matrix with the line containing it". (A "pile" is simply multiple lines or rows within a single MathType object.) The fine point to note here is this command will not literally align the bottom of the bottom line with the bottom of the surrounding text. What it does align is the math axis of the equation with the math axis of the surrounding text. That's a trivial distinction for our example here, but if our bottom line was something like this, the distinction becomes a bit more important:

You have a Word document and you need to include several instances of the same equation in the document. You've considered inserting it once, copying it, and pasting it wherever else you need it. You think you may be needing to change the equation at least once, maybe more often, and it would be terribly inconvenient to have to change every instance of it, and then end up missing one.

As it turns out, there is a solution to this, but it's so much more useful if you plan ahead and follow these steps as you're writing the document.

The solution is to use Word's bookmarks and cross-references. If you don't know anything about these features or have never used them, that's ok. We'll walk you through what you need to know…

Create a bookmark

Now we want to bookmark the equation. First click once to select it. It should not open in MathType Rather, it should have the 8 "resizing handles" around it: . (It will look a little different on the Mac, but still similar enough.)

In Word's Insert tab, click Bookmark in the Links group. In the Bookmark dialog, give the bookmark a name. Microsoft's rules on bookmarks are that "Bookmark names need to begin with a letter. They can include both numbers and letters, but not spaces. If you need to separate words, you can use an underscore ( _ ) – for example, First_heading." We'll name ours pythagorean. After you give it a name, click Add.

Insert copies of the equation

There are at least 2 ways to do this, the geeky way and the way for everyone else. We'll cover only the method most of you are likely to use.

To insert a copy of a bookmarked equation (or bookmarked text, or a bookmarked picture,…) you'll insert a cross-reference to that bookmark. With your cursor inside the document where you want the first copy of the equation to go, click Cross-reference. Like Bookmark, you'll find this also on Word's Insert tab, in the Links group. In the Cross-reference dialog, choose Bookmark in the Reference type list, and ensure Insert reference to is to Bookmark text. De-select Insert as hyperlink (by unchecking the box), click to select the bookmark in the list and click Insert. (If you have only one bookmark, it should already be selected.)

If you have more than one copy of the equation to insert, a good way to do that is to keep the Cross-reference dialog open. Click in the document where you want the copy of your equation, then switch to the Cross-reference dialog and click Insert. Close the dialog when you're finished.

Update the equation

We'll update the equation in two steps. The first step is to update the original instance of the equation. You must update the original one since all the others are not actual MathType equations; they're merely copies of the original. Word treats them as pictures.

Double-click to open the original equation in MathType Make the changes you want, then close MathType to save the changes to your document.

Update the copies of the equation

MathType makes updating the copies easy. On the MathType tab in Word, click the downward-pointing chevron to the right of Insert Number (), then click Update.

MathType will update all the copies of the equation nearly immediately. The longer and more complex your document is, the longer it will take but shouldn't take longer than a second or so for most documents.

We hope this tip has been helpful. As always, please ??? if you have questions about this, or if you have a tip of your own to pass along. We'd love to hear from you.

You've just created the most beautiful document in the world. Trouble is, you wanted it to all fit onto one page, but you have a small amount spilling over to page 2. You don't want to change the margins or delete anything from the document, so your only choice is to change the font and/or the size of the font. Word makes it easy enough to change the text of the document, but it doesn't know how to format the equations. That's where MathType 7 comes in.

A lot faster than changing each one individually, isn't it? If you have a tip that you'd like to pass along to us for possible inclusion in our Tips & Tricks, ???.

You've written a test (Document 1) and a grading & solutions guide (Document 2). It would be convenient to create a link from the solutions to the equations in the test to which they refer. It would be even more convenient if the links in Document 2 would update if the numbers changed in Document 1.

There are at least two scenarios where it would be useful to link from one document to another:

When you insert a numbered MathType equation in Word, MathType uses Word's field codes to insert the number, but there's nothing in the field code itself that identifies an equation uniquely. For example, here are the field codes for equation number (1.1) in a document with 3 equations (1.1 through 1.3):

There's nothing there that would identify this to the human reader as Equation (1.1).

Because of that, we need to insert a bookmark to that equation. By doing so, we can assign a unique identifier to the equation number. If you'd rather, you can attach the bookmark to the equation itself. That would satisfy scenario 1 but that wouldn't really fit scenario 2. Changing the equation itself in Document 1 won't do anything in Document 2.

For scenario 2, we want to bookmark an equation number so changes to the numbers in Document 1 will automatically reflect in Document 2. To insert a bookmark to an equation number, click to select the number. On Word's Insert tab, click Bookmark. If Bookmark isn't visible on the Insert tab, click Links and you'll find it there. (Mac: On Word 2011, it's in the Insert menu.)

When the Bookmark dialog opens, type the bookmark name in the slot provided. Bookmark names must start with a letter, and may include letters, numbers, and the underscore character. Our equation number is (1.1), but we can't use parentheses or the decimal point in our bookmark name. We could name it Equation_1_1, but doing so wouldn't be good for scenario 2. The link would still work and it would still update, but if the numbers change, you may have a bookmark named Equation_1_1 pointing to an equation number that's actually (1.3). Name it whatever legal name you want, but it may make sense to name it according to some other criteria. We'll name this one Triangle, since it fits.

Click Add, then Close.

It's not necessary to bookmark all numbered equations in Document 1. The only reason for the bookmark is to mark the equations in Document 1 that you want to reference in Document 2. Thus, you only need to bookmark the equations you want to reference in Document 2.

For the remainder of this section, we'll consider scenario 2. Before you do anything else, save Document 1.

Here's where it's totally non-intuitive…

In Document 2, where you want the linked equation number to appear, use the shortcut Ctrl+F9 (Mac: Command+F9 ). That will insert a pair of braces with a space in-between: { }.

Inside the braces, if you're on Windows type this:

INCLUDETEXT "C: folder1 folder2 filename.docx" "bookmarkname" \!

where C: folder1 folder2 filename.docx is the full path to Document 1. The double backslashes must be there in place of the normal single backslash. For example, if my User name is Elvis and Document 1 was in my Documents folder, this would its path for the command:

C: Users Elvis Documents Document 1.docx

Note: File paths on a Mac can be tricky, and it's absolutely essential you get the exact file name in the field code, or it won't work. The easiest way to do this is to navigate to the file in Finder, right-click/control+click/2-finger click the file name in Finder. While in the right-click menu, hold down the option key to reveal the "Copy (item name) as Pathname" option (it replaces the standard Copy option). Click that option and the file's path is now on the clipboard, ready to be pasted anywhere. On a Mac, the above field code may look like this if my User name is Elvis and the document is saved in my Documents folder: INCLUDETEXT "/Users/Elvis/Documents/Document 1.docx" "bookmarkname" \!

Once you do that, right-click and select "Update Field". The field code should go away and will be replaced with the equation number you linked to. You can try it out by inserting a numbered equation prior to the one you just linked.

It's important to note Document 2 won't update until you save Document 1 (otherwise Document 2 will never know you changed anything). Once you make the changes to Document 1 and save it, go to Document 2 and on the MathType tab, click the downward-pointing chevron to the right of Insert Number. Under there, you'll see Update.

Click it and your linked equation number will change. You might want to add Update to the Quick Access Toolbar so it's easier to update next time. To do that on Windows, right-click the command and "Add to Quick Access Toolbar".

On Mac adding Update to the QAT is a bit more challenging. Click the Customize Quick Access Toolbar icon:

In the Choose commands from: list, choose Macros. Scroll all the way to the bottom, then the 4th macro from the top should be the right one. Two ways to verify that. First, out of the several in the list with the name MathTypeCommands.UILib.MT…, the one you want will be the last one listed. Second, if you hover the mouse pointer over it, you'll see the name shown here:

Click to select that one, then click the > icon in the middle. Click Save, then Close the Word Preferences dialog. Next time you want to update the equation links, click the icon at the far right of the QAT. It will look like a circle.

Scenario 1

For scenario 1, where you wanted to create a hyperlink in Document 2, select the text you want to hyperlink.

Insert a Link, either with the Ctrl+K / Command+K shortcut or from the Insert tab. In the Insert Hyperlink dialog, navigate to Document 1 and click once to select it. Click the Bookmark button and a list of bookmarks will appear. Here's something to watch out for: The bookmarks are listed in alphabetical order, not in the order in which they appear in the document.

Find the bookmark you want and click once to select it. Click OK, then click OK again.

Now that equation number is hyperlinked. Note the hyperlink is to the equation number in Document 1. It's not to the equation itself, unless you bookmarked the equation (see next section).

That's OK for scenario 1, but sort of defeats the purpose of scenario 2. For scenario 1, insert a Bookmark:

In this example, I've added an inline equation, then added a bookmark to that equation:

Now link from Document 2 to the new bookmark in Document 1:

Thanks to Bob Klauber, who provided the inspiration for this tip. If you have a tip that you'd like to pass along to us for possible inclusion in our Tips & Tricks, email us.

MathType has braces, brackets, arrows, and other templates that are perfect for this type of situation. Let's say this is the example you want to use:

You should explore each of MathType template palettes on your own to see what templates you can use for annotating equations, but there are four that are particularly useful for this purpose. Notice the templates at the bottom of MathType Fences palette (see screenshot to the right). To create the expression above, just choose one of the templates from the palette, and begin creating the equation. Be sure to switch to Text Style to type the annotation. You can change the color either before you create a particular section, or you can change colors after the entire equation is completed.

Here are some additional suggestions for using MathType templates for annotating equations. Each of these examples was created totally within MathType

Microsoft Word and PowerPoint, as well as similar programs in other office suites such as LibreOffice and WPS Office, have drawing tools that you can use to annotate equations. In general, make sure your drawing tools or drawing toolbars are turned on. If the office suite you're using doesn't have them turned on, check the View menu for a list of toolbars you can choose from. Chances are, there's a Draw, Drawing, or Shapes toolbar there. In Microsoft Office, they're turned on by default. Here's an example of annotating an equation in a Microsoft Word document:

Most paint programs (such as Corel Paint Shop Pro and Adobe Photoshop Elements) and drawing programs (such as CorelDRAW and Adobe Illustrator) allow you to annotate photos, drawings, and other graphic objects. If you choose to use such software to annotate equations, it's best to first save the equation as a high-resolution GIF (300ppi minimum) if you're using a paint program or as a WMF (Windows), PDF (Mac), or EPS (Windows or Mac) if you're using a draw program. Once you open or import your equation, use whatever text and drawing tools are available in the software to achieve your annotation.

Business graphics software such as Microsoft Visio or SmartDraw offers a pretty impressive array of options for annotating your equations. Not only can you use MathType equations to annotate drawings, flowcharts, and diagrams created with this software, but once you insert the equation, you can use available tools to annotate the equation, as shown in this screen shot:

It really depends on what type of annotations you need to make and what software you're using. These are our recommendations:

After installing MathType, you've noticed there are now several keyboard shortcuts in Word that have changed. You'd like to use some of these shortcut keys for different commands.

When you install MathType, the installation process installs several keyboard shortcuts into Microsoft Word. These shortcuts can then be used in lieu of the buttons on MathType's tab in Word, or on the MathType menu or toolbar (Word 2011). Here is a list of keyboard shortcuts added by MathType:

You're writing your thesis and you're using MathType equation numbering. You want the equation numbers and references to include the chapter number. Your chapter numbers are sequential numerals from 1 to 68 except for the appendices, which are upper case alphabet characters. MathType numbering does not allow you to change from Chapter 68 to Appendix A for the equation numbering.

MathType equation numbering uses Word's "fields" to create equation numbers and references. This in turn enables the numbers & references to automatically update when equation numbers are added. MathType provides an "Update" button to update the numbers and references when individual equation numbers are deleted. You can format these numbers according to your needs:

Since you want chapter numbers in your thesis, we'll click to select the Chapter Number box and likewise de-select Section Number:

Pretty straightforward. When you insert your first numbered equation you'll see a dialog like this:

Since our document doesn't have any equations in Chapter 1, we're starting ours with Chapter 2. Set yours to whatever the document requires. We don't have numbered sections in our document, so it doesn't matter what number is in the section number box (yet).

At the beginning of each chapter (or if not at the beginning, certainly before the first numbered equation), insert a chapter break:

Note the document's chapter breaks and the equation chapter breaks do not have to occur at the exact same point. Just the same, it is important to insert a new chapter break even if the chapter does not have any equations. If you forget to do this, it's OK. Just go back to a point in the chapter you missed, and add a break there.

To change the equation number formatting in the Appendix, you can wait until the Appendix is complete, but you don’t have to. All you need is to have at least one numbered equation. However many equations you have in the Appendix though, select them all. Your selection should cover all equations and equation numbers in the Appendix, and all text in-between. Remember, the numbers will currently be numbered according to the next chapter in sequence. In the case of our example, the final chapter was 68, so the first equation in the Appendix should be (69.1). Don't forget to add the chapter break. It will look something like this:

After you make the selection, go back to Format Equation Numbers and choose to number with NO chapter number, and ONLY section and equation numbers. Set the Section Number format to A, B, C. Also set it to use this format for "new equation numbers" and "current selection":

At this point, you've got your document set up the way you want it. You can even add a second appendix -- Appendix B -- and equations and references at any point in the document.