Thanks Marc,
The reason I don't place a new U-shaped wall first is that a lot of the time there are modifications to the existing wall, ie height or vertical placement or even just a material attachment etc. using my method copies those modifications and ensures consistency with the existing. Also, if this is a compound wall which has parts in the same plane ie metal stud and insulation, the wall cleanup tool has to be used separately on each element(ie graphic group turned off), so if a wall has say 8 or 10 parts to it, I have to do this 16 times just to clean up the corner.
The reason I don't place a new U-shaped wall first is that a lot of the time there are modifications to the existing wall, ie height or vertical placement or even just a material attachment etc. using my method copies those modifications and ensures consistency with the existing. Also, if this is a compound wall which has parts in the same plane ie metal stud and insulation, the wall cleanup tool has to be used separately on each element(ie graphic group turned off), so if a wall has say 8 or 10 parts to it, I have to do this 16 times just to clean up the corner.
