The Context Menus.

The context menus are where all the action takes place.

Right Clicking on an empty area of planetGenesis, will bring up the main context menu.
This allows you to add a function, a combiner, or a new noise engine, save or load the noise graph you've created so far, or zoom the noise graph in or out.

Right Clicking on a noise icon will bring up the engine context menu.
From here you can view and change the noise properties, replace the engine with another, delete the noise engine, or view a 3D preview of the noise.

Right Clicking on a function icon or combiner icon will bring up the function context menu.
From here you can view and change the function or combiner properties, delete it or view a 3D preview of the function/combiner results.

Right Clicking on the terrain icon or combiner icon will bring up the terrain context menu.
From here you can view and change the terrain properties. This is also where you create your terrain.