dates to backlog

[pirotfab]

Hello,

Do you know to display expressions according to the dates in a single table?
Let me explain :
My application binds my calendar on the date of order. (Order date = calendar date)

I want to display, depending on the selection of my schedule, the sales of delivery for the next 3 months from a desired delivery date that is entered in the command table.

Thank you for your answers