In the logic node Editor, do you know how to do to select easily a frame which is under another frame ?
Hmm… In Blender if you want to select another object which is under the one you just selected, you just click again. That doesn’t work anywhere in any node editor though, in or outside of Armory. For example, you can’t click again on a compositor node to select the compositor node underneath. Given this is about how the Blender node system UI works, I’d file an enhancement issue on the Blender issue tracker requesting that nodes work like the rest of Blender in this way.