Hi! Is it possible to change the "Total quantity" of rewards to an infinite amount to prevent the page from showing "x available"?

I did not quite understand what you meant, could you show me a picture or be a little clearer lol.

Not at the moment, but it's something I want to add.

Great. :)

@Euvoltarei1 You can add "Rewards" to a game like the rewards on kickstarter. If someone pays e.g. 5€ he gets the base game, if he pays 10€ he gets additional extras. But you have to enter a fixed amount of available rewards. But digital preorders have no limit in most cases. :)

I use it for Standard, Silver and Gold edition of my new game (with extra skins and expansion pack). 

I think the best thing you can do is to set it to a very large number, such as 999,999,999 and regularly reset it to that number.