How to import sketches into tianzheng model

Su Can can't recognize his own tiles, such as walls, doors and windows. So there will be less things in the past, but if they are blasted, the lines will become messy. The best way is to convert to Tianzheng 3 format.

Click File Layout-Graphic Export in the menu bar on the left, select Tianzheng 3 in the dialog box, and then import the new file of Tianzheng 3 in SU, and it's OK.