ST Expess 6 seater how to access pedal box

[browntech]

I have a 6 seat 2009 ST Express and need to access the pedal box to check the micro switch,etc. What is the best way to pull the mat up. I can take the side rails off but the mat is still anchored in the left front by the horn button (two rivets) and the brake pedal. Its easy on the 4 seater since you can roll the mat forward but on the six the mat is one piece that extends under the driver seat back to the second row seats.

Any help/guidance would be appreciated.