Hello, I have a JVM410 100 watt combo with the 6-button footswitch.  I am seriously considering buying the marshall dsl20cr for smaller gigs, rehearsals and to have something lighter.  I know it comes with a 2-button footswitch.  My question is: will the 6 button footswitch work with the marshall dsl20cr?  I would like to be able to use the 6-button to have more control and switch between the gain stages of each channel, not just from one channel to another.   Thank you,