Is there any way to control my Roland Gr55 with Sonar using Cakewalk VS100 as controller?

Hi, I would like to be able to control filter and resonance of my Roland GR55 through Sonar X! using my Cakewalk VS100 act buttons as controller. I have the GR55 driver all setup and recognised but can't work out a way of doing this. I'm hoping it is possible, it is all Roland after all.