Could anyone please advise on the best way to lock and control top of arch in windows family.
I would like to be able to adjust the width and height of the window and have a fixed 150mm vertical distance between ends of arch and top of arch.
The ends of arch lock to the reference plane, but how to lock the top of it to the ref plane controlling the height of the window?
When width of the window is changed the top of arch moves up and down rather than staying at the same height.
Your advice is much appreciated.
Please see illustrating screenshot attached.