Option to save replay during game.

I don't know if I'm alone in this but like whenever some cool thing happens in a game, I want to save the replay. But it happens for example in minute 2. 3 minutes later I forget, press exit or find a new game just to realize I forgot to save the replay. And it doesn't matter how many times I bash myself for forgetting, it keeps happening a lot :P

So even though I know it isn't that important, and maybe I'm just one of the few that have this problem, but I would like the option to save the replay during game. Obviously it wouldn't save it immediately, but the game would remember it for me and save it at the end. It could be like a checkbox or something.

Thanks for reading :)