The power tools of 2D Graphics enabled for any plane in 3D space.
Create and modify 3D text geometry.
Create and edit various kinds of advanced Bezier surfaces from Bezier curves, arcs, circles and lines
Fake ambient occlusion inside SketchUp.
by DBS
Extension allows to rotates view around specified element.
Subdivision, sculpting, and soft selection tools
Automatically softens and smooths autofolded edges.
A tool to create B-Spline curves that pass through user selected data points
Tools to manage nonrational and rational Bezier curves, arcs, circles and lines
A tool to create Bézier curves.