"Pre-drop" tremelo build ups

I have just started to learn how to make predrop build ups using the tremolo insert however the tremolo insert in cubase 7 cuts off at a rate of 10.0 and that is not as fast as i want the climax of the build up to be. i would like for it to be much faster. any tips on this? and id also like to know how to make tremolo build ups sync in time with the tempo of the music. for example speed up from 1/8 to 1/16.