Completing Missions with Coins

From time to time I get away from the computer and stay logged in and because of one thing or another I do not get back for quite some time... often 24 hours. I often chose to finish missions with coins if I have them to keep them from expiring at the 48 hour point. The Staging area has a feature where you can select and clear multiple units from the assignment. It would be nice if you could select multiple missions and clear them similar to the feature of selecting multiple units from staging.