Hello, in the closet and wardrobe, the top line and bottom line of the cabinet can be generated all at once for all top/bottom lines, or can be generated separately for a single side. Take the wardrobe as an example, the operation is as follows:

Method 1: Generate all top lines. Right-click on the blank wall with the mouse, select "All Lines" -- "Top Line Installation", and select the style and material of the top line;

Method 2: Generate in point selection mode, which can generate a single side top line. The steps are as follows:

1. Move the mouse to the "Mode" toolbar and select the point selection mode;

2. Press and hold the Ctrl key, select the points for generating the top line in a counterclockwise order, right-click on the point, and select Top Line Installation.