Method 1: Create a finished border

In 3D/Wandering mode:

1. Left-click on the floor;
2. Click on the border iconin the top toolbar of the screen;
3. Then, click on the floor again to display the border.

The new version's interface screenshot is as follows:

     

Method 2: Custom tiling

1. Enter the Custom Tiling section, double-click on the floor to enter the tiling interface;

              

2. Click on the top toolbar to draw the border – select the number of border layers to create, left-click on the white area to draw, or right-click on the selected area to add a new floor border.

        

3. After drawing the floor border, click on the border that needs to be edited, and you can set the width, direction, and corner type of the border.