You can vary the display of Interior Elevation lines/range using the following two options at View > On-Screen View Options:
•Marker Range: displays the interior elevation limit line and Room Boundary line
•Highlight Source Markers: displays a highlight that indicates the range of the viewpoint. The color of this fill can be set in Options > Work Environment > On-Screen Options.
Edit Room Boundary
1.Select the IE or the IE Group:
Note: If the IE group uses a single, common marker, select the marker to select the entire IE group.
2.Use pet palette commands to edit the line.
Note: Inserting a new node will create a new IE viewpoint.