Hello, you can enter the custom solid wood module and design the carved shape on the wainscoting. The specific operation steps are shown in the screenshots as follows:

1. First, enter the custom solid wood module, double-click the wall surface, and enter the free design interface of the wainscoting;

2. After double-clicking the wall surface and entering the free design interface of the wainscoting, click the designed wall panel to add the carving;

3. Select the required carved shape, which can be directly dragged onto the wainscoting. After adding, click the "Complete" button in the upper right corner.

The operation animation is shown as follows: