Where can I find the section to enter in my short term rental car fees for delivering with Postmates and DoorDash?

I see under the help section that I can add it in under the “car and rental equipment section”. The closest section that I can find is “equipment rental” section, and this section list examples such as office supply rental. When I tried entering my car rental fees here, it stated that it is uncommon for someone in the Delivery Driver line of work to have this kind of deduction, so I’m assuming this is the incorrect spot.

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