Super Shift

Super shift is an interactive tool similar to smooth shift which allows you to inset and shift groups of polygons together. Unlike smooth shift, the plugin lets you interactively inset the plugins by dragging the mouse left/right. Furthermore, the inset algorithm used can be chosen along with the shifting algorithm through the numeric panel.

Unlike smooth shift, an average normal shifting algorithm is provided to shift groups of polys along their average normals rather than along a local normal. I find that shifting along an average normal is often easier to control, as it doesn't deflate/inflate the selection as it grows inward/outward.

The inset algorithms provided at the time are a local inset algorithm and a regular scaling algorithm. The regular scaling algorithm scales the selection to the averaged center, similar to lightwave's size tool. The local inset algorithm, however, insets the groups of polygons on a local basis using a rather complex interior edge algorithm. This is probably the most useful feature of the plugin, as local insets allow you to inset complex shapes like a T-shape without the typical overlapping problem you find when performing a regular scale. Furthermore, local insets do not push the extruded surfaces inward/outward as does a typical scale on a concave/convex surface.

The plugin defaults to local insets with averaged-normal shifting.

SuperShift in action:

Local insets vs regular scaling: