Recording tempo changes

Is it possible to change tempo of audio via slider on the toolbar of Tempo Track Editor?As written in the manual,“simply start playback and use the slider to raise or lower the tempo at the desired position”.I tried with VSTi and it works as you wish,is it different with audio so you have to work with elastique pro?

You have to enable “musical mode” for the events that you want to follow the tempo.

It seems that audio is played back the way its been recorded.No way to change the tempo “on the fly”,although they say that slider is exception.At least it can be done with VSTi.

AFAIK it’s not practically possible since it would either introduce a LOT of latency (probably seconds for these algorithms) or change the pitch along with the tempo.