Cut plane height

[HOUCAD]

Is there a way to set the cut plane height in a viewport or layer?

For example, in a floor plan I want to show door and window openings but in a reflected ceiling or roof plan I don't want to show them. I know I can set the doors and windows to show the wall lines but they don't need to be turned on at all.

[Pat Stanford]

Set a Regular Viewport to an elevation view and the use the Section Viewport command to create a plan view at whatever height you want.