Sorry Artak,
but as long as no player unit is present, you can't
access the enhanced features in the editor.
Even if there has already been a player, but deleted or
changed to anything else later.
Changing the player into a non-playable unit, would
just setup the vehicle to be AI controlled instead of
desired: empty
Also, you can't change the side of an already existing unit.
What i mean is: you can't change a western truck into an
empty truck.
~S~ CD