Adding Controllers
There must be at least one controller in the map being edited before the GUI
screen will be completely active, so it's the first thing you need to do
to create a map.
There are basically two ways to add controllers to your map. The first is
using the Map Wizard. It will lead you step-by-step
through the basic map creation process and is especially recommended for
first-time users.
The second method is a bit more work but provides somewhat greater
flexibility. You have to Add the Controllers one at a
time. This is also useful if you have an existing map and wish to expand
the map by adding another controller to it. When using the Map Wizard, you
always start with a blank map.