Or hook it up to a Lemur (or Lemur App or similar bi - directional automatable tool) and sync just before your performance - then everything is in sync
I don’t know if there’s the possibility for the OT to (one day) work with support for incremental MIDI messages -this would address this if you had a device with encoders which supported that protocol - like the Novation stuff
it’s easy to establish what the OT can’t do in days, but it’s not possible to establish all it can do in days (some of which may plug the gaps in the preliminary ‘can’t’ category)
one thing you have to let go of (or pass on the OT wrt) is the implications of audio fidelity under time-stretching etc - if you can’t make peace with that then you won’t get along - same with the headroom - it always samples after adding 12dB of headroom, so to re-level the captured material it has to gain it all back (inc noise)
you can almost certainly do exactly what you want using a computer, write the software in Max/MSP, but that is another debate altogether
the OT makes most sense if you are needing and willing to use most of its features, namely sampling / mangling / stream-playback / mixing / looping / midi … if not, then it’s diminishing returns for the financial and time investment - it’s a hard machine to bond with imho because it needs a good practiced pilot to get the most from it, the other recent elektrons are much more intuitive and forgiving (but conceptually restricted in comparison)