Grant Editor Permissions to Flamingo Inbound messages

I just migrated from “Contact Form CFDB7” to Flamingo for logging my incoming messages. Now I’m trying to grant permissions to my leadership team who has “Editor” permissions. I was able to do this for Contact Form CFDB7, but now I can’t grant Editor access to Flamingo Inbound Messages.

I’m using the freeware MemberPress for setting my roles. Do I need to create a custom role for Editor permission for Flamingo Incoming Messages ? How do I do this?

The page I need help with: [log in to see the link]