I request this tool be added to the server, in SP sandbox I find it to be extremely useful at making the perfect constraints
My gfx card is dead so I haven't been on for a week. If it was added during that time then yes it has it. But I'm assuming no one took the initiative :
Smart welder is going to be removed. It causes too much lag when people use it. It isn't codded to well. :-\
Yea, you should use smart constraint on servers and smart weld in single player. The constraint works like advanced dupe. It has a percentage where it welds one weld at a time so the server doesn't overload.