Cropping a map

[Austrulex]

Is there a tool that can help me change the size of the map I'm working on? I want to make a snippet of the map by cropping a specific corner of my map for sharing purposes. And it has to be able to slice the map and not just shrink or enlarge it..

I would appreciate a response.

 

[Hermit]

Scenario > Map Size and Camera Bounds