Changing MuzzleVel for Mounted Particle Emitter

I'm using the Mounted Particle Emitter resource and it works great. I'd like to be able to change the Muzzle Velocity variable dynamically though with a keystroke. Since this particle emitter is on the server side I can't use a command to client and it's mounted to the player so I can't pull the emitter up in the world editer to find out the objects number to do a dump on it. Any help would be greatly appreciated.