You can encourage guests to book longer reservations by creating a discount in Wheelhouse.
Select the specific listing you'd like to set a long term discount.
On the Strategy page, click on Long-Term Discounts on the left panel.
Enter in the percentage for Weekly and/or Monthly Discount and select Save Changes.
When a guest makes a long-term discount, this is what they should see on Airbnb (and other channels):
If a guest books for a month long reservation, the weekly will not apply on top of the monthly discount. Only the monthly discount will apply.
Wheelhouse does not override Long Term Discount Settings for TripAdvisor