Autoformat
Autoformat works in the add-on for Workspace and the add-in for Microsoft 365 but it is an optional feature if you are using MathType in other environments. If you are a developer, you can enable it by parameters.
Autoformat replaces some symbols from the keyboard with their better-looking counterparts. At present the replacements are:
The replacement is done while you type, so you never see the actual key pressed.
Autoformat also auto-closes parentheses and alike. When you type the left fence, the right fence is automatically inserted.
These are the enclosers that have this feature:
If you want to modify this automatic end symbol, place the cursor to the left of the symbol and write the alternate end symbol. This only works with the end symbol. If you want to replace the automatic open symbol, you must insert a new left/right pair.
See this example of an open-closed interval:
