Hi Dorin
Gave this plug-in a try today, very nice work mate, here i a link to an image , Not posted to keep your topic clean.
pool tile Took me a few attempts to orientate the object and figure out that "centre x/y" referred to the object's position once it is pasted in, other than that all good, except [;)], i recall reading that the shape generator plug-in was used for some of your background work, could you use another of its attributes and have your plug-in remember the last settings used, very handy when tweaking a previous attempt.
Thx and well done [:D]
MIke