This morning, I was fooling around with WME, animating tiny characters in their tiny outfits walking around their tiny world, and I saw the need to zoom in to see better what I was doing. So after an internet search, I found this program called
DesktopZoom which has proved to be useful in order to be precise while shaping regions, placing waypoints, hot spots, ... as it allows to zoom in and out on the screen (Ctrl key+mouse wheel) and keep interacting with SceneEdit/SpriteEdit.