How do I change which square(s) my city "works"?

[SassQueen]

There I go, calling them "squares" instead of "hexes". Old habits die hard.

I'm either missing something, or you aren't allowed to choose which spaces your cities use. I've got one that has beaucoup food but only one mine and a couple of forest spaces, and yet they insist on eating when I want them to work. I've tried just clicking on the square I want them to work on, right-clicking, clicking on the space I want to give up, etc.

Any thoughts?

 

[Yushal]

Click city bar to enter city screen. At top right is a bar which says something like tile allocation. Click that to allow you to manually choose tiles. It is the very topmost thing on the right hand side of the city screen.

 

[SassQueen]

Thanks so much - I knew it had to be something simple. I really need to let go of my micro-managing ways, but this one city I have in particular was really bugging.