How to take "leave" in Coop Campaign

[DrDeath_MD]

I have a coop campaign that seems to generate the exact same mission on the same date (a low alt patrol). It seem "stuck" and the mission cannot be loaded in the server. How do I take "leave" or danced a few days to try and correct this.

[PatrickAWlson]

Same as single player: Your Campaign->Activities->Leave and enter the number of days.