Modify Supportline tool
Opens the Modify Multi Supportlines dialog, which is used to modify multiple supportlines in the active unit.
The Modify Multi Supportlines dialog contains a table listing all the supportlines in the active unit which allows for quickly making multiple edits. This dialog also supports copy and paste from spreadhseet programs, allowing more efficient input if needed. If a bridge is already defined, any changes made to supportlines will automatically update the bridge model accordingly.