A Prim moving in relation to other prims using HUD?

Hello

I want to create A group of prims that will be attached to an AV, and by the use of a HUD, one of the prims from the group moves in relation to the rest.

Example: Fighting Wristblades (Like the ones from the predator movie). When the AV that wears them clicks "switch on", the blades slide out and extend. And when he selects "switch off" they slide back.

I think this must be a script containing a timer or something.

Does anybody have done something like this? Is there anything similar that I could have a look?

Thanx a lot

The solution is for the HUD to whispher a command which the blades are listening for.
Rather than moving you may find it easier to just make them visible or invisible (standard show/hide functionality)

Yes i know ...but moving is cooler!
Can i just displace the prim's center in relation to the other prims in the group by some little distance using a timer?

Thats my main question

cheers

Moving should actually raise the temperature since its using energy......
yes you can move the prims or could even resize them or alter the cut angle (which may look better)