File name caption feature

[Virgus]

It would greatly help to be able to see the name of the currently visualized file: sometimes you have different versions or resolutions of a same image and it would be useful to know which one you're looking at. Maybe the feature is already available but I couldn't find a way to trigger the show-up of the file name (or the number in the list of cached files). It might be just a menu option or an hotkey that triggers the showing of some file properties (like IrfanView does with "i" hotkey) ?