What i find frustrating is I'm not really sure how to get editing the page and i have to go to changing the color to get to changing various parts of the page.
What would be cool is if the floating page would be different for a presentation, Card, or table.
So you would have your general icons that would be universal no matter if you are clicking on the 3 dots for any of the 3 layers (presentation, card or table) you would have some universal icons but with in each of the those layers you would have buttons unique to that layer of editing or creation.
I have included a video of my company back end that has a slide tray when i click on the arrow. You may use the three dots. But each icon opens up into a desired area that my staff needs to work on. Just some thoughts. I think all editing items should be with one or two clicks in the same area no matter if you are working on the whole presentation , or just a single card or in a table. some software has the icon bar at the side of the screen like canva or a floating icon at the bottom of the screen.