Extruding an Edge
Click and drag the edge in the direction of the Pull arrow.
To dimension the extrusion, right-click and enter a distance in the mini-toolbar, or type the distance while you are pulling and press Enter.
Press Ctrl to copy the edges.
Press Ctrl+C, then Ctrl+V to quickly copy and paste a selected set of edges in place.
You can click the Up To tool guide and click a face, edge, or point to pull up to. If the face does not intersect the edge you are pulling, the edge will be pulled parallel to the face. If you pull the edge of a surface up to another object, the result is automatically solidified if it creates a closed volume.