Disable unloading from transports?

[gameshow]

I'd like to make it impossible for the player to unload units from certain transports i've created. I've removed the "unload" ability from the transport, but clicking on the unit portrait inside the transport still unloads the unit. Any ideas?

 

[WastedSavior]

eh, i dont think its possible, you'd have to also rob the cargo hold ability