Modo 14.0v2 docs:

Using Edge Component Tools

Some of Modo's tools are specific to the various component types: vertices, edges, and polygons. For example, there are three component beveling tools, and each has its own settings. The Edge Bevel tool has a rounding option, but the Polygon Bevel tool does not. Some tools are interactive tools, but others are one-shot commands that produce a specific result. You may use some regularly and others only rarely; however, all could be considered indispensable. For information on using a specific tool, click any link below to see its topic.

Edges
	Edge Bevel	Widens the selected edges into quad strips of a uniform specified width.
	Slide / Edge Slide	Moves selected mesh elements (vertices, edges and polygons) along their connected edges.
	Edge Tools	Turns the current edge or edges to re-organize the way they separate the two adjoining polygons.
	Edge Tools	Welds two edges together and the resulting edges have a position that is an average of the original edge positions.
	Edge Extrude	Shifts edges outward along the average normal of their two neighboring polygons.
	Add Point	Adds a new vertex point along an existing polygon edge, splitting the edge in two, or along a curve wherever you click.
	Edge Relax	Changes the radius of edge bevels.
	Edge Chamfer	Round selected edges of a mesh.
	Edge Tools	Removes the selected element without destroying the integrity of the geometry.
	Split	Separates mesh polygons along selected edges.
	Edge Extend	Creates geometry from selected edges by extending them outward.
	Add Loop	Adds a continuous edge through a series of polygons.
	Edge Tools	Deletes edges from the mesh geometry.
	Split Normals	Creates hard or soft transition edges between polygons based on edge selections.
	Edge Tools	Fills any open holes within a mesh with only quad polygons.
	Edges to Curves	Creates Spline curves, Polylines, Bezier curves, or B-spline curves from edges on an existing mesh.