I can see there is a way to select all tempos and adjust them in the tempo track, so far I can only raise or lower them all by a fixed bpm. Using this they do not scale relatively.
In the velocity track you can use the transform tool and this provides ways to adjust by a fixed value, or to scale relatively with other selected velocities.
Is there a way to use the transform tool in the tempo track? This appears to be what I need but it doesn’t appear to be available.
I have seen previous threads on the subject but was unable to find a definitive answer.