Architects rejoiced. In earlier versions, section cuts showed only an empty space. SketchUp 21.0.0 added (hatching). Users could assign a pattern (ANSI31, AR-CONC, etc.) to a specific tag. When you cut a section plane, enclosed geometry automatically displays the fill. This made exporting 2D VectorWorks-style sections directly from SketchUp viable for the first time.
A: No. Only SketchUp Free (web) is free. 21.0.0 requires a Pro license or a 30-day trial (which expired in 2020). However, existing perpetual license holders can still reactivate it. sketchup 21.0.0
To keep 21.0.0 running like a dream on modern hardware (or a modest laptop), apply these settings: Architects rejoiced