CADWorx Plant I tab: Palettes > Line View 
Palettes toolbar: Line View
Plant menu: Palettes > Line View
Plant menu: Utility > Line Isolate Palette
Command line: LINEVIEW
The Line View palette isolates components based on their line number, specification, or custom data. It also lets you locate components based on their description information.
Line View does not process any entities on locked layers.
Line Isolate Tab (CADWorx Line View Palette)