I love idea of Extents in WM
It is very comfortable to use big extend to see full plan of the world, and use little ones to see high-detailed separate zones
Buuut - it is quite long/boring to nagivate to zone, in which you already have your camera
Maybe button “show current extent” will fix it? It could be implemented as “show the smallest one extend” in which you camera currently in. Or based not on position of camera, but more on central point of ray, that casted from your camera. - So if you will look on volcano and will press that button - this button will chose the smallest available in that point extend to show you
How that sounds? Comfrotable/no?