I don't know if this is the good forum, but I'll post:
I'm searching for some plugins:
-SDS,
-Joint Push and Pull,
-Skin Tool.

This are the names that Elisei noted on his tutorial, but I only found the Offset tool on Smustard. Where can I find the others?

P.S. maybe you found some spelling faults in my text, because my English isn't very good...