@Jennifer2518,
Before the pandemic, I had requested a way to charge for weekly cleanings. I was informed by reps from more than one platform that the reservation systems are built for either a daily fee or a one time fee. Since the daily fee didn't suit my needs, I've done as @Helen3 suggested, and adjusted the nightly rate (in my case, provided a smaller weekly or monthly discount) to account for the additional cleaning that may be required for longer stays. If you don't offer a length of stay discount, but sometimes offer promotional discounts, you can add other fees such as the management or resort fee, to cover the additional cleaning. I still have a cleaning fee that covers the cost for preparing the space for rental, because it takes the same amount of effort regardless of the nightly rate.