Is there a way to preview changes

I'm running JJOS 3.08, I'm trying to figure out is there a way to preview a change prior to executing. For example, if I want to change the pitch or tempo of a sample, can I hit a pad to hear hear how it sounds, as I increase or decrease via jog wheel, without hitting execute then undo if its not the right way I want.
Or is this option available in another JJOS version and if so which one(s)

not really besides saving your project before you make a change and then deciding if you want to keep it or not having the option of reloading what you just saved

Yeah just hit do it. it gives you a preview after the time stretch and pitch shift options, you can play it, keep it, or try again.

Thanks for your replies. Elmacaco, that's the way I do it now. I was hoping for a simpler way like I described above. Surprised the thought or idea never came up before.