Show or Hide Redlines
Over the course of a project, most drawings receive a large number of redlines, which, if left visible, would clutter the drawing. Select Text > Redlines > Show or Hide Redlines to toggle redline visibility.
All Redline objects are drawn in the Redlines class. If redlines are hidden when a new redline is drawn, the Redlines class visibility is automatically turned on and all the redlines become visible. Use the Show or Hide Redlines command to hide them again.

Drawing Notation : Error/Revision Management Using Redlines : Show or Hide Redlines

Nemetschek NA
Phone: 410.290.5114
Fax: 410.290.8050