I'm stuck in my city, and I need help on getting to the city next to mine. I've read the guide, and where it explains how to get to other city grids, but I still don't get it.

Here's what it says:

"To a new city grid (a grid is one block whether it has a city or not)
Step 1. ::Control:: Position > Travel > CrossTerrain > choose surface destination,speed and/or eta, then Go."

Please clear this up for me.

It's fairly self explantory so I'm going to guess your problem is that you haven't walked to the side of the city adjacent to the city grid you are trying to move to. So if you want to move to a city grid east of the city you are in you have to walk to the east side before the cross terrain option will appear. You also have to be able to travel on the terrain you're heading to.

Oh, I didn't know you had to be on the side of the grid. Thank you for the help. :)