How to set a special week/weekend price?

Originally written in English, any translations errors should be checked against the original atricle

It is also possible to set up a special price. For example, a package price for Christmas. When you are in the price schedule, select the start date of the period on the grey box between the date and the line where the price is entered. (See image below). 

You release the cursor again on the date when the special period ends. In this case, that would be 27-12.

You then enter the price for this period. This price applies for the entire period. (See image below).