Divide linework or a block containing linework into two (or more) parts defined by a dividing line you draw. You can then select the parts on either side of the line. If a closed-boundary object is divided into two parts using this option, both parts are recreated as closed. If an open polyline in a zigzag pattern is divided along its length, many selectable segments are created.
You can select the divided parts of the linework or object on either side of the divide line. The divide line is not visible after you select the second point.
Dividing a space object