Very nice add-on, very smooth and easy to use. Another great feature would

Very nice add-on, very smooth and easy to use. Another great feature would be the ability to stack toolboxes against an orientation, for example two Toolbox’s set to TOP RIGHT would sit on top of each other, as if they were in a VerticalLayout.

Thanks!
Yes, I have thought about that feature too. Especially if I make the Toolboxes draggable, this would almost be required