To set up a flat fee for an item, head over to the inventory page and select your item.
After selecting your item, scroll down to the pricing section in the appearing pop-up menu.
Here you have two choices:
Enter all the fields as the same price
Leave all fields as blank besides the Monthly field
If an item is reserved for more than 30 days, it will not act as a flat fee.
After entering the details, go ahead and save your changes.
Note: The system will always choose the cheapest cost for the client. For example, if your flat rate is $50 and a buyer tries to select a 3 day reservation, the system will charge $50 not $150.