Hey! I have a card with a due date that I want to be changed to a new due date (that is set on another card) once it's marked complete. I couldn't find any way to do so (except for custom fields, however, it's useful only in the paid version). There is a solution for specific dates (in a day/week or a specific date) but I would like to insert a variable date ({foundcarddate}).
How can I do so?