I use TurboCAD mainly for 2D house drawings. I've always used the TCT format where the wall function is in 3D and you can insert windows and doors easily. I've never really figured out how to use it solely in 2D..
I note however that DWG format is a smaller file size and may be easier to use. The DWG format in TurboCAD however seems to be temperamental. Once I re-open the DWG file my settings like space units (metric changed back to English), dimension formats, text sizes etc has all changed again.
Alternatively is there a function in TCT format to have the walls in 2D mode where you can insert doors and windows automatically? I don't use the workplane as I don't have a clue how to (would this even be necessary in 2D mode?). TCT files also seem to work better with hatching etc.
Any help will be much appreciated.