You can use these steps to get to where you'll select the option to add another Schedule C.
- Log into account and click Take me to my return
- Type schedule c in the Search box in top right and hit enter
- Click on jump to schedule c
- On the Your 2017 self-employed work summary screen, click Add another line of work
- Then start entering the information for that second business
That will generate a separate Schedule C for you.