User Role Permissions

Hi, as a shop owner I need to give access to a freelancer that is helping us manage the affiliate program in SliceWP.
I need to give him access to our SliceWP dashboard, affiliates etc. But I don’t want to give access to full wp-admin console. It seems that not even a Shop Manager is able to view the SliceWP on the left black menu.

I installed “User Role Editor” plugin to try to achieve this, but when searching for the permissions per user on the User Role plugin dashboard, nothing related to SliceWP appears.

Any ideia on how to achieve this sharing of SliceWP access without having to give admin access to the freelancer?