Do NOT be entering information in the Home Office section as a Sole Proprietor business.
For the K-1, are you a member of a Partnership? Or are you a shareholder of a S-corporation?
IF the Partnership Agreement requires you to pay for those expenses, then you can deduct it in the section where you enter your K-1. There should be a check-box asking if you had expenses.
However, the program does not have a handy office form for that, so you will need to manually fill out Form 8829 to calculate what your office deduction will be.