Used to remove selected sub-entity line of a curtain wall. Applies when selection is to inner mullions.

Accessed from:

• Ribbon: Building Design > Modification > Modify Selected > Modify Curtain Wall > Delete Entity Line

When executed, removes the mullion panel boundary of entire line, thereby merges sets of adjacent panels into single panel. When any of the horizontal mullions is selected, the panels above and below get merged, and for a vertical mullion, the panels to left and to right of it get merged into single panel for entire row or column.