Hello, free modeling cannot directly do custom ceiling and wall, and it is not compatible at present. But you can also make simple suspended ceilings. Take the quadrangle suspended ceiling as an example. The steps are as follows:

1. Draw the required rectangle size and click on stretching;

2. On the stretched rectangle, draw another rectangle, stretch it upwards to present a concave state, and then click on the rectangle and select scaling. The quadrangle suspended ceiling is completed.