If you are using TurboTax Online, there is no ability to directly edit the forms. You enter your information using the EasyStep Interview, and then TurboTax Online will populate the forms for you. You can see the forms by downloading/printing a copy of your return. You can also see the T1 line numbers by looking at your Detailed Tax Summary.
Please see the following TurboTax FAQs for instructions:
How can I see a detailed summary of my return in the online edition of TurboTax?
It is very disappointing that I can't use the forms method on the on line version which I only discovered after I bought it. Do you know if the CD version allows the forms method of input as opposed to enduring endless questions by the software?