java2go

I have found the cello tone but the default has vibrato that needs to be slowed down to be more realistic. I am not sure how to edit the parameters of the tone so I can save it as a new stage setting. For whatever reason, I cannot seem to locate the menu to edit effects etc on it as well. Any suggestions? Mike contributed some string sounds that are awesome, but I need a really good solo string sound (not an ensemble) where the vibrato could be altered ideally with one of the foot pedals or even one of the sliders. Any help is really appreciated. Love this keyboard.