First, log in to your Steward Dashboard.
Next to the listing that you would like to add an additional guest fee for, click the three dots, then Edit Listing.
In your listing dashboard, click Rooms.
Underneath “Maximum occupancy for this stay,” select the maximum occupancy your stay can accommodate (this is including the guests that will be charged an extra fee!)
Scroll down to the bottom of this section and click Continue.
Next click on the Price Settings section.
Scroll down to the bottom of this section. You can now fill out the fee amount, each guest this will apply to, and whether this will be per booking or per night.
Click Continue when you are done.