Granted, this isn't a biggie, it just saves some clicks and a switch to a new tab and back. But as the Lord said, "Asketh and you may receive." So I've been told anyway.
When you're figuring how to cover a current, or future check with a spare plane (if you've the kind of personality to indulge in this kind of anally retentive micromanagement, that is, obviously), you need to figure where the source plane is and where the destination is.
I reckon there's room to fit in the 4 characters for the current base in location 1, below. But you're using a longer version of the plane model name in the "Upcoming C & D checks" frame (location 2), which would probably need to be rationalised, to conform with the format used in the "Currently" frame above, so you can fit the new base column in.
(https://i.imgur.com/Tp4F84S.png)
Thanks!