Holy Crap, I just began the process of revamping my button heavy scene with the action UI plugin, and it just works, keeps everything aligned, and the best part is that its much more optimized than the default VAM trigger atoms. I replaced about 20 UIbutton triggers, and it upped my FPS from 40fps to 60fps. This is amazing.
Again: reviews are not a report section, your review should be limited to "Does not work with subscenes" eventually, but full reports should be written in the discussion.