how do assign my record, play and stop buttons to reason an keep it in lock ,,so when i open a new document i wont have to reassign the buttons .. i could just press play button to play an stop to stop ..any body ??

Did you check the manual? I just got Oxygen 49 and it explained everything. The only problem I came across was that the mapping was outdated, but I found it on their website. Here is the link: Oxygen 8 v2 Reason Remote Drivers. You don't need to fill out the survey, you can just click the link at the bottom right away.