Glad you like it :-)
I am working on a new version which has a few more workflow improvements:
-One of the normal maps is automatically applied to the slot, so you now have to drag and drop only two maps instead of three.
-The textures are now automatically placed in the shelf.
-The mask generator can now automatically generate a mask. It should work in most cases. No need to tweak the mask size anymore, it is all done automatically, and varies locally. It works using cascaded pixel processors. Not too fast (a few seconds), but a lot easier to use.