TOPIC: want to add a paid option

hello

i need to add an option for an event :
it is a seminar on two days : there is a price, but those who want to spend the night can choose the pension for more.

how can i do that ? it is quiet urgent ... for yesterday

Not a problem. Use a selection fee field. Our fields give you the ability to provide various options and add-ons with associated fees/discounts. See this video tutorial for more details and examples:

http://www.youtube.com/dthdevelopment#p/u/3/cuB1qwx4pJo