Only the Desktop CD/Download programs have the FORMS mode. For Online you have to download the pdff to see them.
Before filing you can preview the 1040 or print the whole returnhttps://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-filing/00/26160
Only the desktop versions have the forms view. Online does not.