Sometimes I like to patrol areas of sea with air units in case of sneaky invasion force. With more than one plane doing it, it can be a little tedious to do this manually every turn. I wonder if I have missed a command to automate this. If not, such command would be a good addition to BtS. With those trade routes it would be useful. "Recon this square until I tell you otherwise or it becomes impossible for some reason." Pretty simple, I think.