This does solve the problem specific to the posing plugin. I also needed this because im using the "Blender like operations" plugin: The constant atom ui opening while setting up the controllers for animations got annoying, i will edit the question to include this. But i think i might decide to...
Would it be possible to somehow prevent Atom UI from popping up when selecting a controller?
Problem example 1: Click on atom to get gizmo -> atom ui pops up -> "AnimationPanel" is covered by Atom UI (i moved the Timeline by user Skynet (thx btw) to the left because i use the posing helper...