Handy shortcuts

CTRL + Q	-	Toggles town names on (or off)
Minus key	-	Zoom Out
Plus key	-	Zoom In
CTRL + Plus or Minus	-	smaller zoom increments
Mouse wheel	-	Scroll up or down to zoom in or out
Arrow keys	-	Click on Place tree and use the arrow keys to expand or compress a place level, or to go up or down the list