I still don't understand, when this feature is really available. Looking at booking the Zilara Cap Cana. For a set of dates I have chosen, where standard rooms are available on points, it does not give me the "Pay My Way" option.

I then chose another set of dates (i.e. shortened by 3 nights but basically the same dates), I was given the option. Now what I also noticed is, that the Pay My Way option is only available on the full web version and not the mobile app. Just for your awareness.