With TurboTax Free, you just search for the items you need. After you've completed the personal info section, use the Find button in the upper right to search for your slips and any deductions you may have. In your case, you'll search for T4. On the T4 screen, just fill in the boxes that are on your T4. Then select "Add another T4" to do the same for the second.
If it's your first tax return, consider upgrading to TurboTax Standard. The Easy-Step interview guides you along and checks over 400 possible credits and deductions. Learn more here: https://turbotax.intuit.ca/personal-tax-software/standard-online.jsp