lower my trapazoid windows

[pamlams]

I am using Home designer pro 7.0. I did see the option for frame through. I am gussing I should set my cieling height to match the ridge and make sure that frame through is not checked. The problem I see with is that I will be trying to build two different window in plan view at the same location along the wall. I will give it a try maybe if set the sill height of the traps it will allow me to do this.