You meen like auto accept when some one invites you to start webcam. If yes this can be done go to Prefs>Conversations>Check box, Auto accept requests
You can set up remote assistance on the computer then to the other one then ''take control''. You can use WLM, Windows xp, or any other remote assistance program to do this.
I am not shure about a script but i think it might work.
Good luck
