Shifting a prim in linked object.

An object consisting of 2 or more linked prims...

I want to shift one of the linked prims up or down at various times.

Before I go about figuring out how to do this*, can anyone tell me if it's pointless to try in the first place? I mean say the prim in question is a door handle on a door. If i tell the handle to move up or down, is the whole darn door going to move with it?

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* probably very simple I would imagine, involving llSetPrimitiveParams & PRIM_POSITION

You can use llSetLinkPrimitiveParams to set the position of the linked object, or you can use llSetPos in a script in the child prim itself.

From the wiki:

"Moves the prim to position pos. If the calling script resides in a single prim or the root of a linked object, then pos is in region coordinates, which are relative to the simulator's southwest corner. If the script resides in a child prim in a link set, the pos is relative to the root prim of the link set."