'''Example''': City tax charged for first 7 nights only.
Create 2 Upsell items and 2 RatesFixed Prices/Daily Prices.
Go to {{#fas:cog}} (SETTINGS) BOOKING ENGINE > UPSELL ITEMS
*Description = City Tax
Prices > RatesFixed Prices
Open Rate 1 :
*Select Upsell Item 2 - per night City Tax
Prices > Daily Price SetupRules
*Open Daily Price 1