Disable the ADD LISTING from GeoDirectory

Hi
I would like to set up my directory so that only I can add the listings, at least for now, or maybe even permanently.

I don’t want to trash the facility. I want it to only be visible and avilable to myself whilst the directory remains fully searchable to users.

I tried creating a new menu. This allows me to remove all pages except LISTING and ADD LISTING.

Is what I want to achieve possible?

Thank you