Just like Schematic’s Design Manager, PCB’s Design Manager can be found via:
Left Navigation panel > Design
or just press the
CTRL+D hotkey to open the Design Manager dialog.
In this dialog, you can:
Click a component to highlight it.
Check/uncheck a component to show/hide it.
Filter to find a component or net.
Click a net to highlight the tracks/vias with the same net.
Check/uncheck the net to show/hide the net. For example, very often you may want to use this to hide a GND or supply net which has had a copper flood added to turn it into a plane and then show it again later.
Double click the net to remove all of the tracks and vias with the net name. If you want to reroute a net, this is the recommended method to use to un-route it first.