Locked at start, unlocked after condition

[Wolf]

Alright, here's my plight.

I have two choopers side by side, locked, and have some bushes covering them for effect.
I have a radio command that will appear when near them to remove the camo.
What I need is a command to unlock them once the camo has been removed, so you can then fly off in one.
Is there such a command to unlock a chopper after the mission has started?
I have Res if that makes any difference.
Thank you.

[seanver]

unit lock false

to unlock

unit lock true

to lock

[Wolf]

Thanks