[Bf-funboard] Please add a Zoom Border zoom out

[Reiner]

The Zoom border tool currently just supports zoom in. But that`s just 
half of the show. Zoom border in in combination with Zoom border out 
would allow a very quick navigation.

UI wise there would be not this much to change. A rectangle dragged from 
left to right could allow to zoom in, giving you a positive value. A 
rectangle, dragged from right to left, could allow to zoom out, giving 
you a negative value.

Thanks for considering

Tiles