Never mind people i found out that worldbuilder does check my new added stuff i just didnt make any mistakes on the road and it whas so bug free i thought it wasnt even testing it.
But now i did have a bug and worldbuilder noticed it so it is working lol, seems my coding whas a little to perfect in the beginning
you can always just check to see if your new units are in there...
of course there are some things that the worldbuilder doesnt pick up on...stuff having to do with command buttons for example...