It is not possible yet -- this is something that we will add in a future update.

also waiting for this.......

Now, opening Pianoteq standalone, it says the tuning is "MTS-ESP" and I cannot seem to turn it off. Even if I click on something else in the tuning menu it still says MTS-ESP. I think this is because I have MTS-ESP open as a plugin in Logic Pro X, even though I am running Pianoteq standalone as a separate thing.

Is there some way to flip off MTS-ESP, even if I'm using it elsewhere?