Select either Inset or Width. Inset determines the distance away form the original un-beveled edge. Width determines the actual width of the new bevel (prior to the application of any rounding, if applicable).

Controls the amount of the bevel as a distance value, depending on the Mode selected.

When this option is deactivated the tool uses the neighboring material. When activated, you can choose an existing material to apply to all newly created geometry.

This value allows the tool to create additional edges between the original pair generated. Each new edge is placed in such a way as to create a rounding effect between the outer most edges.

For edges shared by three or more polygons, Modo groups the polygons into pairs and creates new faces between each pair, ignoring polygons not part of a pair. At junctions between three or more edges, extra polygons are inserted to bridge any gaps created by the extrusion. Extra polygons are also inserted at the bare ends of edge to keep the shape closed and planar as the edge bevels.

Determines the shape of the resulting beveled edge with three options.