I just woke up and realized that the Office flyout could be an interesting feature for Windows Explorer.
When you select something, like a paragraph in Word, a flyout appears with some useful options: change font, size, etc.
This prevents to drag the mouse to the top of the screen, and is really useful for the users who are... lazy :)
I made a little concept, I know the result is ugly but you get the idea.
When you select some files and folders, a flyout appears with some options depending of the content of the folder... (playing music, video, or just drag/copy files).
When the mouse is over the vertical 3 dots, it extends the flyout with more options.