Is your feature request related to a problem? Please describe.
Having a lot of alts on different realms makes it very difficult to keep an oversight over all lockouts. You either have to login to all realms one by one or you have to cramp all up to 50 characters you have on your account into a single list.

Describe the solution you'd like
A dropdown menu to select the realm you would like to check for your character's lockouts on that realm

Describe alternatives you've considered
A possible alternative would be to have a scrollbar for your list of characters.