I beta tested 2Tools for Al in 1998, it works exactly like a tape machine, so the SSL computer is in charge of locating the DAW.
SMPTE from a DAW track feeds the SSL and Tach Pulses let the SSL locate the DAW.
Once you dropped your Cue list in, you can say type: CYCLE 'CH 1' The SSL with play Chorus 1, stop, rewind and then Play Chorus 1, until you give it the next command.
Personally, it keeps your hands off the DAW and on the SSL faders, and you just work with the Cue list (song arrangement) building a mix