This issue is motivated by the case mentioned in the issue #178090.
When you press shortcut CTRL+TAB, then a popup window is displayed with the list of opened files. Keeping CTRL and press TAB you can select the file (tab in editor) that will be focused. The problem is that when you have opened a few files with the same name, then you can not find the file that you want to display.
There is displayed the path of selected file in the status bar of the IDE (see screentshot), but it's almost useless. User is watching the popup window with the opened files and is impossible to look at the status bar and the popup window at the same time. The path of the selected file has to be a part of the popup window. Probably displayed as last line, but visually separated (JIdea has this approach).