Unfortunately no. The Tracker doesn’t really have a proper MIDI Thru functionality.
If your goal is to use your MIDI Keyboard with the Tracker AND the Digitone, then a MIDI Thru Box is your best bet. There’s quite a lot of possibilities out there for MIDI Thru Boxes:
My recommendation is the CME WIDI Thru6 BT
It’s the cheapest on the market (not by much), and the most feature packed.