As you know SB Live allows for two (out of nine) fx to be midi controlled at the time. Reverb and chorus have there own CCs, for the other fx you can choose from a range of free controllers (in Environmental Audio). In this mixermap I've reserved CC12 and 13 for this goal. Dedicating these to fx  will disable chorus and reverb.

SB Live! Mixermap for use with Cubase by Jan.Vansteenwegen@planetinternet.be