This very very small mod only adds a small button to the worldmap, next to the 'Zoom Out'-button. If the button is clicked, the map will change the zone to the ony you are currently inside. Nothing more, nothing less.
The idea to this small mod came me while I'm coding another addon where i switch the zones, and everytime i want to go back to my active zone i have to zome out the map und search for it.
Note: Only tested on english client, but should work on all.