You can vote for new features from a pre-defined list for the next software releases here:
You could outline more details of what you want to do here on this forum forum thread as well.
Well I think 'joypad shortcuts support for ReLive' would describe option that I think would do well.
There are a few things you could look into I think.
1. Does any software exist at the moment to monitor / report / customise the joypad inputs and display those to the screen in Windows?
2. Can that software modify the function of the joypad inputs and map them to other key combinations?
3. If the above software does not exist in 1&2 above, then have you thought of using a small bluetooth or wireless keypad in the meantime?
4. You can already map / modify hot keys in AMD Crimson ReLive already. I will post the information about that next.
Looking at the above, the ReLive Hotkeys always require Ctrl/Alt/Shift + key combination.
That could be difficult if using a separate wireless keyboard + joypad.
You would prorbably want something like the Spacebar to start recording (provided you can remap spacebar function in game).
So having an option to modify ReLive Recording hotkey assignment might be an interim request you could make?
One final thing you could try.
You could apply to the following AMD Vanguard Program.
Link is here:
That might give you a way to get more interaction with the Crimson ReLive Team.
I am not sure of the time commitment involved.
Video regarding Crimson 17.2.2 and related topics here:
PCPer Live! AMD Talks New Radeon Software Features - YouTube
Thats all I have time to look into / think about at the moment.
I hope it is a start to help you get the features you want into ReLive. Good luck!