This option creates copies of selected entities and joins end point positions on the original entities with end point positions on the copies.
Joining entities assume default attributes. Unless specifically noted in the options, the joining entities will be lines.
Coincident positions create only one joining entity.
A point creates a joining entity at its position.
A line, open arc, open conic, or spline creates joining entities at the entity’s end positions.
A closed arc or ellipse creates a joining entity at the its zero degree position.
A polygon or polyline creates joining entities at its vertices and end positions.
The Join function cannot be used with annotations.