I moved your posts to the vba forum.

You have several questions but the primary one seems t be about macros.

You can add AutoCorrect Options to your QAT rather easily.
I did a number of years ago.
Modifying the Quick Access Toolbar (QAT) in Microsoft Word




That gives you access to the full (four-tab) AutoCorrect Options dialog.


Some things cannot be recorded or even written as macros. I believe this is one of them.


You can also assign a keyboard shortcut directly to the command.

There are two commands available. The first "ToolsAutoCorrect" gives you only the main AutoCorrect Options dialog (the first tab); the second "ToolsAutoCorrectManager" would give you access to the first tab and the Math AutoCorrect tab. (There are separate ones, also for AutoFormat Options and AutoFormat as you type Options.) I prefer to simply put it on the QAT.