Can you save gain changes in the new app?

Can anyone tell me please if the new Pioneer DJ app allows you to save gain changes to individual tracks like the usual software would when using a laptop with a controller? Thinking of a portable setup basically to rid my laptop - ipad mini latest gen, with a flx4, but wanted to know how different the app is to the software and what the latency is like of course also, Apple wouldn't let me try the app in store with my flx 4 ( I tried asking over the website if I could book to try it, and it was no!), so I would have no idea unless there is someone in here that can advise that has the app.