Hi, I am wonder is that possible to add a 'back' button in gallery admin panel?
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True. But I had mentioned that in my suggestion -I have tried your pressing the browser's back button. Here is my problem, If I do that, the browser go back to previous page without refresh the edited info, such as title.
Admittedly, after a save, you'll have to click it twice (first will go to the same edit page as the save process had redirected to the same location to refresh) but the next click will take you whichever screen you were originally on (the listing within the folder in your case).