Re: Freezing breast milk
When I breast feed my last son, I would pump before feeding him and freeze the breast milk for later I would put a piece of tape on the bottle with the date on it. Breast milk will last in the freezer for 3 months, so I was told years ago. I didn't work I was and am a stay at home mom, but freezing the milk was good for my daughter to feed the my son sometimes and hubby would get up in the middle of the night sometimes and feed him.
As for train your beast to wait to be pumped, I don't know.