Map editing?

I'm not sure if this is the correct thread to post this question in, and if not I will gladly delete this comment and ask in the appropriate thread,

I'm looking for a tool or a tutorial for editing the map (i.e the one you access via the gear) and the connectivity of routes/towns. Where can I find something like this? :)

If you want to make/edit maps in a GBA game than I recommend Advance map.

I approve, it's still a-map.

I think he means the town map.

In that case, this tutorial is a good place to start: https://www.youtube.com/watch?v=W6fK2B1IEn4