you have two choices, you can use a n xx command to send a specific note number on a channel (the channels are defined in the aboy software, so for example you could assign both pulses to midi ch 1, wav to ch 5, etc) or use a q command to send a midi note relative to the currently playing lsdj channel. This is cool if you want to layer a midi sound over a lsdj instrument, you can just drop a q00 in the instrument and it will clone whatever midi note that lsdj is currently playing, without wasting the effect channel.
You can also play a table with groove 6/6 at the first step of the pattern, and then it will make the midi table a two note at a time capable chain. Combine it with qxx and you can do three voice chords in one channel.