how to navigate to the first file in the file group ?

-if you have quite a few (lots in fact) files/audio in a file group, and you process a selection (e.g. in a new tab) then you find yourself after the last file of the file group

how to jump back to the file you were working on ?

also, when you close the current file/audio in the file group, you are (again) positioned on the last file of the file group
-but i’d like to continue/work on the (now) first file
how to setup / config this kind of behavior/work-flow?

Try this: F5 key allows you to toggle between the last two activated tabs.

If you not, you can still activate the desired tab from the Project Tool Window.

Another way is to type some letters of the desired tab, there:

works perfect, thanks