Zoho Books Bills not showing as an expense option

Zoho Books Bills not showing as an expense option

I am quite new to zoho books and looking at the tutorials there should be an option to add an expense like a bill but I have no options showing under the expense tab to do that? Is this because it's still on the free version or am I just doing something wrong?

to explain what I am trying to do: I want to add a customer expense from a vendor that I haven't yet paid that is still billable to the customer.