This feature should be able to:

Charge every X months (if we want to sell yearly suscriptions, it should be there aswell)

I've thought about this feature, but it's been my experience that people don't want to keep endlessly educating themselves. When I used a small payment each month, people signed up and left after a month. When I upped the price for a one-time payment (about 3 months at a time), the community grows and people keep coming back even after half a year and buy new courses because of it.

Now I'm thinking about an annual payment.

Please add a recurring billing option for communities. Free and one time payments are needed, but recurring billing is needed more. Please add this feature asap. It’s a feature one of your competitors offers.