Are you f*$#&$@g telling me I can not set the tile that my citizens work? WTF kind of crap is that? Maybe that's why they cann't sell this crappy imitation of a clasic game....
If thats the case, thats just lame. If all the city tiles are being worked, wtf is the use of growing in size? If the entire city radius is being worked, a city of 1 is as good as a city of 10.
Well, yeah, I'd rather choose which tiles to work, also.
However, you'll notice that the city borders grow at certain stages.
When the size gets to about 19, your citizens work more tiles. The borders grow again after 32, and 48, I think.