Tempo change on playback

I recorded a large, multi-track project at one tempo using the metronome function.
How do I change the playback tempo now of the entire project ?
I cannot find an answer to my question anywhere in the documentation for cubasis3.
Thank you,

Hi @Stephan_Grasmuck,

Thank you for your message.

To change the tempo of a Cubasis project, simply tap the BPM button located to the right of the transport controls, and make your desired changes.

One done, MIDI tracks in your project will automatically follow the new tempo of the project.

Audio tracks will also follow the new tempo of a project when being set to time-stretch, which is explained in our “Getting started with Cubasis” tutorial:

Hope that helps!

Best wishes,