I'm not sure what you mean by naming the parts on the verticies. Do you mean actualy naming specific verticies?
LOL, sorry for the confusion:-[ you have on naming vertices. That's not what I meant.
I was talking about the rudder itself. When talking about the Vertical, to me that means just the Vertical fin. Not the rudder portion. I consider a Vertical to be made of two parts...Vertical and rudder. That goes for the Horizontal too. You have the Horizontal and the elevator, which the elevator is attached to it Horizontal. Do you see what I mean?
As far as the twisting of the vertical is concerned, you have it either linked to the rudder or it has a name that causes it to become animated in FS. If you can't get it sorted out free to send the file.
FSEdge