Limited support
This feature is only present in Portal 2: Community Edition and Portal: Revolution.

cm_filter_quickplay_with_history

🟦 Executable on Client

cm_filter_quickplay_with_history <value>

Tells the client if it should filter maps in QuickPlay mode with history queue.

Warning:

This is a cheat command and can only be used when sv_cheats is set to 1.