change size based on 1st or 3rd person

hi I'm wondering if there's any way to make item only appear in first person and not render in the players hand, or have the ability to control the size of the held item only in 3rd person/1st person?

you can use the visibility option

you can use the visibility option

Sorry if this is a dumb question but where would I find that? Is it part of objmc or is it an json thing. And could you provide an example too?

it is an option in the gui