Sync daw to dorico: this is one solution

[dspreadbury]

This has been discussed before, so more information can be found e.g. here:

Feature Request: ReWire/MTC

I found this TXL Timecode plugin and it seems to work in Dorico. Set up a virtual MIDI port. Load it in Dorico’s Instrument Rack in the play tab and set it to send the time code over your virtual port. Launch the MTC DAW or other software you want synced with Dorico and have it slave to the MTC coming over your virtual port.