Here is a screenshot of the mouse interaction and hotkeys customizer. With chances it will be finished before the end of the week. A beta will be available for those who want to test it.
On the left (the operation list is not complete): Operation that involve the mouse. To change the mouse+keyboard combination, you'll have either to choose from a preset or set to custom and put the mouse over one of the element list and press mouse and keyboard combination.
On the upper right: "Assign using UI buttons". As you may see, the UI button are green, which indicates that Unfold3D VS is in a special state in which it does not execute actions when you press on them, but rather record the current hoteky combination (i.e: ALT-CTRL-F) and will associtate it to the button you will click.
On the lower right: As an alternative you can also bind action to hotkey usign the action list. Almost all Unfold3D actions can be binded.
Okay, I'm back to UV life, cannot say that it's a happy period, but with Unfold3D it's not so miserable anymore :-). First of all: Remi, thanks a lot for making Margin and Spacing not 0 anymore and it's super great that size of the gaps are related to UV resolution.
After changing Add selection to Shift + Left click -- it stops to work. With Ctrl-LMB it's fine, but with Shift (modo style) it just refuses to do so. After I change it back to LMB+Ctrl it works as usual.