Multi Level Action Buttons

I use SB quite a lot on my mobile device. While on Desktop It’s possible to use a lot of keyboard shortcuts, this is kind of useless on mobile, where you basically rely on the commands menu and action buttons.

For rarely used functions the command menu is fine, but I want to use a lot of functions with 1-2 clicks at best.
So the action buttons come in very handy, but they take a lot of space in the top bar if you have a lot of them…

So my idea would be to create an additional kind of action button, which works like kind of a “top menu” - a bit like the “hamburger button”, which drops out a “sub menu” with more buttons.

Basically I want to have a handful top menues (additional to the “normal” buttons now) with “sub buttons” appear on click. And They should be configurable just like the action buttons now.

For example something like that:
Btn1 Journal

  • add page
  • jump to today
  • open calendar
    Btn 2 Format
  • Fold toggle
  • outline move right
  • outline move left
  • strikethrough
    (and so on…)

Is there already any way? E.g. by using special CSS?

i don’t think that’s possible with pure css.
But it’s doable with some LUA+JS+CSS. to create a floating toolbar grid, which you can toggle on/off or appear autoatically on mobile, or make it stick under the title bar.