Hi Itoo 
How to create  a Parametric Door that i control to open but still be able to adjust the size of the door and frame if  architect has changed the door width or height or to create double door leaf that opens etc sliding and folding as well
with hingges etc 
also to create a window that the lower part is fixed panel but the top part is a top hang that can open etc 
op this is understandable 
Regards
Mouton