Yes.
There is MTC and MIDI Sync mode in the options-preferences-MIDI-MIDI Output dialogue. However that should default to not having MIDI Time Code enabled so MIDI Sync should work.
Your drum machine may support Song Position Pointer, which is likely enabled in the same window. If so, it will start at whatever measure RB is at when you hit play; don't have to start at the beginning all the time.

The 'Options-Sync Source' selection is for choosing whther RB is the master or slave, so leave that at is (internal) so RB runs on its own clock, and it *should* just send the MIDI Sync out of the selected MIDI Output port as the default setup.
In other words it'll probably just work, as long as the MIDI out selection is the desired connection. If it doesn't, see if you have have 'reroute all MIDI to DXi Synth' enabled.


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