oh I just tried it, that’s handy to know 
but it stops at a maximum of 300 bpm. which is plenty if you’re giving normal note values. but for more experimental projects with larger note sizes and adjusted tempos it’d be nice to go to even bigger extremes, say, from 50 bpm doing adagio style strings to 800 bpm with really large notes larger than a breve to create some interesting transitions.
currently cubase only allows you to set the value as far as 300, I say increase it a bit 