Making maps used in a campaign

So I imported my maps into the w3n, but they are blue and when I save the campaign it says "maps are not used". How do I make them used? Seems like there would be a tutorial on getting started with campaigns here since this is wc3campaigns, but I didn't see any.

I'm fairly new to campaigns myself, but to actually "use" the maps, you need to assign them buttons in the loading screen. One of the other tabs in the campaigns menu allows this.

Lo Bob (yeah i know, not exactly a bright joke :P) what you need to do is the following:

When using the Campaign Editor, go into the "Loading Screen" tab, and choose the option "Add Button" under "Edit". Then assign your map to the new button in the "File Loaded" area, and the map is "used". That should be it, there are also some other options when making a new button, but they should all be self-explanatory, greetings.