Free events and booking without any price

We’re a non profit organization. Can I create free events without a price so that on the event booking page as in the confirmation mails the price won’t show up? Searched and found another thread about hiding if the price is 0, but can’t find the code that needs to be altered (which was provided in the solution).

Possible feature for the future: Would simply love to have a checkmark “free” so no price will show up on any page or mail in the process. I’d be happy to donate for that feature. =)