Now here's a neat the device, the BOSS FS-6 Dual Footswitch is like having both the BOSS FS5U and FS5L footswitches in one box, giving you a range of switching options in a compact device.
What the folks at BOSS have to say about the FS6:
Two switches in one, BOSS’s FS-6 combines latch- and momentary-type switching into one unit. With two switches conveniently housed side-by-side, the FS-6 allows each switch to be set for latch or momentary operation. Pick the configuration that best suits your playing style and setup.