How to change all the tempos simultaneously?

Hi,

I’ve got a Cubase 7.5 LE. I’ve got my project set with midi drums, there are various tempos in the track - I’ve been wondering, is there a way to lower or raise them simultaneously? I just need to practise the speed and I need to, for example, change the tempo by 20%. How can I do that?

Yes, just select all events in the Tempo Track and adjust them with your mouse.