You can do cover processing for closed graphics in the selection set.

Quickly generate all possible faces, which can be generated from the currently selected boundary or from the entire window drawing when nothing is selected.

Select an edge in the plane to create the face.

SketchUp's last quick and intelligent cover tool is very light and easy to use. A one-stop process, you can set options to extend the sideline, delete the short line, delete the broken line, automatic interleaving, face up, flatten the graph, and close the graph! Necessary functions for processing imported CAD drawings on SketchUp. ...