[myfonj]

Yes, Win+<number> is also a gem that almost seems to be deliberately hidden, (like Win+T, Win+B). One thing that helps is to see actual numbers in the taskbar, what, to my knowledge, is currently possible in Windows 10 (only) with third-party app: https://ramensoftware.com/7-taskbar-numberer . For startup

    start "" "C:\...\7+ Taskbar Numberer.exe" -v2 -hidewnd

will show same number for grouped windows so cycling will work.

Btw most tabbed interfaces have the same bindings for focusing first, second ... last tab (Ctrl+<number> in most browsers, Ctrl+9 for the last tab, usually).

I like to apply same "tab principles" to taskbar, so last thing missing here is to be able to "Ctrl+PgUp/PgDown" through windows in Taskbar order just like in sane browsers (with Win in place of Ctrl).

I attempted to do it with AHK but failed miserably, but luckily another third-party app, (7+ Taskbar Tweaker, from the same author as Numberer) can do that through advanced settings. Config in gist: https://gist.github.com/myfonj/62b4e0d393f4a97df5e9904df5e77...

(Sadly, none of those will probably ever work outside Windows 10 (?))