Index Page in Folder for Macro buttons, to Run Multiple Macros on all Files in a Folder

I have created a number of files, with multiple worksheets in each - which sit in folders.

I have now thought about doing some Macros to Protect & Unprotect the many many sheets in eack of the files.
(I have posted here to get some help on that but am certain that some guru will get me up & running with that)

Thinking on, when I get that, I would have to create four buttons on a page in each file to get it to work.

Is there any way to create an index page (sorry about the laymans term) that I could create the four buttons to, in the folder, that would then run the macros in every file in the folder?

Thanks - Hopefully I'm maing some sense & not just thinking out loud!