TurboCad Deluxe 17
I am doing a residential house plan. I have created the floor on a level I've called Mfloor. Now I need to cut the stairwell opening in the floor. I have defined the space as a rectangle- no problem- and then used TRIM, and selected the rectangle (multiple lines I think they call it)- no problem- the rectangle is highlighted. But then I am just asked to select an item to trim again.
How do I cut the rectangle out?
And how do I know if there is an opening cut out, or if it's just a rectangle drawn on my floor?