proposal on Acrobat

Hi.

I'm using recent Acrobat version and there is an inconvenience than older version.

In older version of Acrobat, I could switch left side pannels by keyboard.

It was available to switch the small pages pannel to the bookmark pannel by pressing [Ctrl]+[Tab].

and to switch the bookmark pannel to small pages by [Shift] + [Ctrl] + [Tab].

It was very convenient to edit a pdf files.

It was available on Acrobat 11 or older versions but It's not available any more on recent version of Acrobat.

It's very inconvenient to edit because I can't edit some files by keyboard.

Plz make it available again.

Thank you.