Hi. I'm trying to make a area where when you can pick up an object, but not set it down. (Like carrying Wheatley.)

There doesn't seem to be an input for this in prop_physics. How would I do this?

There's an option from the game_ui entity to stop the player from using the pickup button I think. Flag "+Use deactivates", and each time you enable/disable this entity, it toggles.

I'm almost certain there was a different way than what yishbarr said, try decompiling the valve map of the core transfer (I think it was sp_a2_core) and check what the entity was called that triggers when wheatley is grabbed from the floor after he shatters the glass.

Edit: did a bit of online searching, the entity is a logic_playerproxy. Give it an output for "setdropenabled 0"