This feature is not available in GuideSIGN SIGMA.

GuideSIGN Plus 4.1 and higher include a change to the method used to create the panel borders to ensure compatibility with MicroStation Version 8. When you are working in MicroStation Version 8, please perform a panel update on signs that were created in previous versions of MicroStation. These signs will still be displayed properly if saved back to the Version 7 format for use in previous versions of MicroStation.