I usually work in window mode, not in full screen:
When the window is too small at least the (important) “info” icon is hidden but there is no hint that I miss icons because of the screen width, my blue “Sancho” log in icon cuts the rest off.
- There must be a field with e.g. a triangle when icons are hidden.
Yes. We should provide a '>' later.
Now, a hack way. Do you know use bellow comm button settings to remove some button?
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I share you with my tool bar.

Thanks.