Commands based on which fob is used

Hi I have had my vera for a long time, but am only now getting in to it !

My Visonic alarm system integrates perfectly with my Vera thanks to your plugin. I am using UI7 and trying to setup some scenes using TTS. I would like to be able to get different commands to speak depending on who unlocks the house. Would it be possible to have disarm with Fob 1 or Fob 2 as a variable?

Many Thanks
Nathan