Limited support
This feature is only present in Portal 2: Community Edition and Portal: Revolution. cl_portal_crosshair_mode
🟦 Executable on Client
cl_portal_crosshair_mode <value>
0: Portal 2 mode (Filled when portal is placed), 1: Portal 1 mode (Filled when portal is placeable)
Note:
The value is saved and will be restored on next startup.