You can only enter one address in the Personal Info section. In most cases you should enter your home address. The IRS instructions for Form 1040 say that you should only enter a P.O. box if the post office does not deliver mail to your home address. Some state tax returns have separate places for the mailing address and a home address. If your state does that, the state interview will allow you to enter the separate addresses.
No, you are limited to one ... use the one where you receive your mail.
You can only enter one address in the Personal Info section. In most cases you should enter your home address. The IRS instructions for Form 1040 say that you should only enter a P.O. box if the post office does not deliver mail to your home address. Some state tax returns have separate places for the mailing address and a home address. If your state does that, the state interview will allow you to enter the separate addresses.