Filter selection by what you can see.
Create scenes for each layer and hide entities based on what layer they are on.
Create a finite element or finite volume mesh directly from SketchUp! Add multiple regions, volumes, boundaries and refinement.
A toolbar for placing basic shapes (primitives)
by DBS
This extension allows to round corners of selected edges.
Upload your SketchUp models to the 3D (WebGL) viewing, rendering, and sharing website Sketchfab
Inspects and highlight problems with solids.
by DBS
This plugin allows to draw wire with bending on corners and show exact length of it.