Extrude Tools – A series of toolset which can be used for extruding edges into meshes etc.
Flowify – A powerful extension that twists groups or components along a quad surface. The source geometry is associated with a projection grid and the geometry is then mapped onto a quad target surface.
Mirror - Mirror the selected objects by choosing 1/2/3 points to describe a point/line/plane: then select to retain/eliminate the original objects.
Split Tools - Integrates the Split-Donut, Split-Sausage and SplitUp tools into a single toolbar of face splitting tools.
Vertex Tools - Manage each vertex with this vertex editor for SketchUp. Soft selections are obligatory organic modelling and the manipulator gizmo provides you great control at the time of modelling.
JHS POWERBAR - This tool is unique in that it’s actually a collection of powerful extensions from other developers, like TIG, Thom Thom, Rick Wilson, Christina Eneroth, and more.
Watch the video to learn the process for producing complex shapes with skethup.