How do I change the size of a map?

[City Builder]

Hi,

How do I change the size of a map that I'm working on? A new map is 3x4 tiles, I'd like to increase that but can't see where to do it.

Thanks,

[executor]

Choose landscape mode (shift+L), at the top right under landscape settings the first option should be the one to resize your map.
A new window will pop up asking you how many columns/rows you want to add from top, right, bottom, and left.

[City Builder]

Thanks,

I don't know why I didn't see that before, it's so obvious if it had been a snake it would have bit me.