None that I know of, sorry. You cancel a reservation you made with them online , but that's it. If you want to make a reservation with them, I'd call (using a speakerphone while I was on hold & while I did something else, LOL).
If you want to substitute transferred points into an existing reservation, It's worth a try to use chat and/or online. Chat may or may not be available, and email responses are reportedly taking a long, long time right now (a week or two or three). If your reservation is several months away, you might not mind the wait. I'd probably just want to get it over with and if chat wouldn't or couldn't do it, I'd call.
Good luck!