So exactly how do you want to see EmEditor display the message box? Do you want to see all “file1.txt”, “file2.txt” and “file2.txt” are changed, but you want the prompt to ask the active document “file2.txt” to reload?

Well, I have rethought the proposal. It would become too complicated to do it like I suggested first. Let’s make it better: Why not simply check the next file immediately when changing tabs?