Assigning instance name via actionscript

Hi. I was wondering if there is a way to assign an instance name to something via actionscript. I have a keyframe with a movie clip instance in it, but for my purposes, I can’t assign the instance name of that movie clip via the property inspector, and would need to do so with actionscript. If this is possible, perhaps in some sort of form like “_this.instancename = myInstance”, I would love to know.

Thanks!