Extending the landscape

Is it possible to extend the landscape once its been created? If I click on it and adjust the scale it just scales everything up. Is it possible to extend the sides of it or is that all set and done when youre creating the landscape?

Im talking about the Section Size/Number of Components in the landscape options.

edit:

So it is possible through the landscape manager, however now when I try to extend it after it hits 100% the editor crashes.

edit2:

Alright I figured it out, just have to use the add tool from the landscape manager.

use the add tool under landscape > manage > add

Do note if your landscape exceeds 700mb you wont be able to cook it and must make another landscape in a streaming submap

does theisland have them?

no they used a regular 127x127 2x2 28x28

great to know, thanks a lot!