Splitting a large map in Campaign Cartographer 3
Okay, so I'm working on a world map for a fantasy world that I'm creating that I've attached (this is my first ever map, and I'll likely revise it several times before I'm done with it, I know that it's not terribly great at this point).
However, part of what I want to do is to divide up the map and create more detailed maps for different areas of the main continent. When I drew the continent, however, I did not do so in pieces so I just have on massive land mass.
I've tried using the 'split' tool, but when I do it just makes the land (the green) vanish and leaves the outline.
Can anyone help me understand how to break up the huge land mass into smaller CC3 maps so I can put more detail into these?
Thanks in advance.