Sorry for my bad English .

Question to the developers: As to the combinations of (Ctrl+Tab)/(Ctrl+Shift+Tab) to move to the Next/Previous pleylists? In previous versions, it seems they worked. But now, I can not put them in the Keyboard Shortcuts.
This is a standard combinations for interface with tabs.

Yes, it doesn't work over here too. But if you add playlist view element under Playlist Tab element in default UI, you can use it when the playlist view element is active.

I can't enter them either, but Ctrl-Tab still works for me.

Ctrl-PgUp and Ctrl-PgDn can be entered and they work well.