Suggestions for T300RS keymappings

Hi all, my first post so please forgive me if I don't follow forum rules.

I bought F1 2015 last night for PC and I'm not sure what buttons on the wheel (T300RS) to map for each function.

So if you guys could please tell me what keymapping combinations works best for you on the T300RS & keyboard it would make my f1 2015 experience so much better.

Thanks very much.