After Android 7, it's possible to customize icons on system panel to make it more personal and useful on ONYX BOOX devices. I wrote a small utility (less than 100kb) to provide several useful feature on it, including following features:

• Recent Apps
• Refresh Screen
• Rotate left
• Rotate right
• Screen Refresh mode switch
• Screen mode -- Normal
• Screen mode -- Speed
• Screen mode -- A2
• Screenshot

The source code repo is at Github.
Here the link to download apk.


After installing it, you can click on right top Edit button to drag the icons you need to top area.

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The icons are very self-explanatory.
Wow, that’s great! A separate thanks for dedicated left and right rotation buttons. One extra window less
Daniel Kao
Thanks for the program!
It's possible to add commands "Back", "Home" and "FrontLight on/off"?
This app is great! It finally allowed to remove bottom swipe gestures and that in turn solved poor responsiveness of the bottom edge when tapping. For example, in KOReader’s bottom tabs
Thank you very much Daniel Kao!