Hi, I've been a BOSS user for the past 10 years, mastering every aspect Of the GT MultiFX line. I'm in the process of transitioning to The HD500x to expand and experiment with the LINE6 workflow. I bought one already but it won't arrive until next week. I would like to know if it's possible to attach a dual footswitch. According to the manual, I can plug an expression pedal into the "pedal 2" jack, but I don't need another one besides the built-in EXP. In the past, I used to plug a BOSS FS6 via TRS cable to the "CTL1,2/EXP" jack of the GT8, allowing me to freely program parameters to either of the footswitch buttons (labeled CTL 1 and 2 in the system). The GT8 allowed me to assign modes: latching or unlatching –to operate as on/off for effects– or min/max for specific parameter jumps. I believe the POD allows similar functionalities with the top row switches; nevertheless, I would want to use the BOSS FS6 with the HD500X. Has anyone done this?