this may have been reported already.
If you vector in 4 units to a city before you start production it is hard to find the "ok" button to later on add production in the city.
Once the cities start vectoring in, then that line where it shows what is vectoring in grows to two lines so it covers up the ok button so you cant start unit production until you cancel the vectors.
That probably wasnt a very clear explanation but wanted to get it in there.
Thanks,
Ken