After you use the "add text box tool" once, it should automatically revert back to "select." It's irritating to have to manually switch back and forth between add text and select when you're trying to move a text box after you're done typing. Also, you should be able to copy and paste text boxes. I was filling out an availability sheet and had to manually add multiple text boxes that said "8 am" instead of just being able to copy and paste the first one.