About contact form of listings

Hi!

I’m lost……

When I try to get informations via other questions/answers of 27 Helpdesk about contact form in listing I read that :
“in the listing type editor go to Single Page > Content & Tabs > Profile > click on the contact form block > select the Contact Email.”

But when I go in the listing type editor, I don’t see “Profile” in “Single Page > Content & Tabs”…..
However, listings have a contact form. Where can I find it ?

And all my listings are in the same situation :
– no “Profile” and no “contact form block” in listing type editor
– the same contact form for all listings of each listing type

Regards