@Aerilius something definitely seems to be not working as intended, I too can’t seem to get this to work. Maybe I’m missing something as well?
I can add a new Toolbar, granted it only “sticks” if there is a new tool placed in it. But the icons doesn’t seem to register, also selecting the chosen (not showing proper) icon doesn’t launch anything. I also can’t seem to get a list of available buttons to show?
Can you verify that v1.1.3 in the EW works (as intended) on SU2018pro?