Permit duplicate blocks on toolbar
It is currently impossible to have the same function or block twice on the same toolbar row. As a player, it is not clear to me why this restriction would make sense and should be in place.
The only way to flip between blocks including the stack "root", like the full "Light Armor Block" and another block in the same stack, like the "Light Armor Slope", I must have the stack on one hotkey and a dedicated selection from the G menu on another hotkey. But whenever I want the second selection to be something different, I must go into the G menu again and find and assign that other block. If it was possible to have the stack on the toolbar twice, I could simply make the selection to a different block right in the toolbar without messing with the G menu and could continue building simply by switching between hotkeys by pressing their respective number keys.
I do not see a reason why a player shouldn't be able to plaster their entire toolbar with "Toggle handbrake", for example. Please remove this restriction.