The home in office should go with her Schedule C.

1.  Click Federal on the left-hand side menu.

2.  Click Income across the top.

3.  Scroll down to Self-Employment and click Show more.

4.  Click Start or Revisit by Income and Expenses.

Under Expenses, you're going to select Home Office.  You'll enter the interview for that section.

As for your erroneous entry, go back and delete the entry that you made originally.