I cannot find a way to change the displayed range of the tempo track - it seems to favour the higher tempos - I am using a ramp down to 28 bpm as a retard into a fermata, but am unable to see the lower node (added at cursor using key command). It would really be useful to display events like these, but I cannot! See how much headroom there is for tempos above - roughly 180 at the highest visible point. This screenshot is with the tempo track expanded right out.
Ideas anyone?
Thanks.
A momentary fader should appear when you click on the number that denotes the lower margin of the displayed Tempo Track in the track header on the left side. Adjust to taste! 
Hmm, but I don’t see that option - N14
- ah it’s changed silly me - VISIBLE TEMP LOWER LIMIT!!!