I thought it was easy and straightforward but I was wrong: just easy. Sending the MIDI data from the four tracks of the Digitone to Logic, to play simultaneously four MIDI virtual instruments, requires a touch of environment. You create a Monitor, associate it to a track, and then route from it to four instruments, each one having a MIDI channel filter made with the Scripter.
Easier done than said, but here it is, a simple template ready to use for download.