How do I put more info in?

You won't be able to make any changes until your return has been accepted or rejected by the IRS. If accepted, you would need to amend your return. https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...

If rejected, you would need to correct any information that caused your return to be rejected as well as make any other changes to your return that you see fit, then proceed to resubmit your return. https://ttlc.intuit.com/community/rejections/help/how-do-i-fix-a-rejected-return/00/26136