A third party software for Sketchup (windows explorer thumbnailer, mesh optimizer...)
Add scenes orthographically by entering x,y,z offsets
Suite of tools for working with imported map data to generate buildings and stepped terrains.
Bulk reset of group and component's axes.
Explodes all groups and components in model
Turn loose geometry into groups
Select all outer edges of selected geometry
Context menu access to component properties.
Generate Surfaces from curves by Lofting and Skinning
Drop groups and components onto geometry below