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

ai_debug_actbusy

🟩 Executable on Server

ai_debug_actbusy <value>

Used to debug actbusy behavior. Usage: 1: Constantly draw lines from NPCs to the actbusy nodes they've chosen to actbusy at. 2: Whenever an NPC makes a decision to use an actbusy, show which actbusy they've chosen. 3: Selected NPCs (with npc_select) will report why they're not choosing actbusy nodes. 4: Display debug output of actbusy logic. 5: Display safe zone volumes and info.

Warning:

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