Form 8829 is only for Schedule C, but it can be used as  worksheet for other office deductions  (Schedule F, Schedule E, Partnership K-1, etc.).  After filling it out as a worksheet, you can enter the actual deduction on the appropriate Schedule.

If you want to know whether or not your software has as the ability to use a Worksheet-8829, you would need to tell us what software you use.  Otherwise, just print out your current 8829, then delete it and put the deduction somewhere on Schedule F.