Stimulation based epoching ehancement
It would be nice to allow epoching to be triggered that a set of signals (instead of only one). Typically for the P300 speller, you may have three different triggers depending on the mode: flash (in normal use mode), target and non-target (in copy spelling or calibration modes). With the current box, one has to make three different epoching (1 for each signal) and then merge epochs using a "streamed matrix multiplexer" to get a single flux of epochs to classify...