Editing buttons etc on toolbar without mouse

I would like to know whether it is possible to create or edit buttons/menus which are to appear on a toolbar (or to get to these items) without the use of a mouse?

I can see how to go into customise mode for a toolbar (Tools/Customise toolbars), but beyond that point it is necessary to use a mouse (unless I am missing something).

It is painful some days to hold onto or grips things and having a keyboard equivalents is a necessary alternative.

Toolbar customisation is largely mouse driven, but you could do it via the keyboard using the mouse keys feature that's part of Windows: windows.microsoft.com/en-gb/wind ... se-pointer