Hello Mauma,

There is no "group" function in SH3D, but there is a workaround.

In a separate sheet, draw the entire pocketdoor. Then export it using 3D view -> export to OBJ format. Now import your model using Furniture -> Import furniture and make sure that you click and activate Door or window in the third screen. That way you can insert the completed pocket door in your wall.

The same procedure also works well to make you own furniture.

Hans