Hello, the wall panels of the ceiling and wall can be processed with flat seams and V-seams. The operation steps are as follows:

1. Click to enter the custom ceiling and wall, and double-click the wall with the mouse;

2. Drag and place the wall panel from the left material library, select the flat seam/V-seam, and you can input the seam width;

3. Right-click on the wall panel - select paving - continuous straight paving is OK.