For you to edit macros, you need to have the file that contains them open or for it to be an attached template. The exception for this is the Normal.dotm file.


To view and edit macros in a global template, it must be open for editing (or you must have it attached to a document as a document template, a rare thing to do).


Long term. Any keyboard shortcuts or QAT shortcuts to macros should be in the template that holds the macros. Anything else is asking for headaches.
Modifying the Quick Access Toolbar (QAT) in Microsoft Word