Fishman Loudbox Artist footswitch question

[Jon S.]

I can't determine from the following description whether the switch allows one to toggle between FX A and FX B while plugged into just one of the channels. Someone know? Thanks.

Remote Channel and FX Muting Switch for the Loudbox Artist.

This 2 button lighted foot switch works for the Fishman Loudbox Artist and Performer (brown) only. Button 1 mutes both channel outputs, while letting the Aux input continue to function. Button 2 mutes either or both FX B functions, if they have been previously engaged on the amplifier.

http://www.fishman.com/products/view...box-amplifiers