Using this command, you can stretch any edge to match the line that passes thru the architect and is also parallel to that edge. If that parallel line is coincident with the edge being stretched, then nothing is done.

Unlike the extrude command; this one will keep the angle made by the stretched edge to the adjacent edges – and the affected corners of those edges would also be moved accordingly.

You can always locate the architect accurately using the headsup command line, before invoking this action.

This command can change the size of the original edge. And no additional edges are created.

See also: How to extrude an edge