Download as Zip and Add to Lightbox Plug In Permissions

[tibu]

I have a site where I want logged in users to see the add to lightbox under the thumbnails (plug in by Nibbler) and see the download as zip, but I want these features, and possibly the favorites links and buttons hidden to guests. Does anyone know of a solution?

[kryspin]

I would appreciate the solution very much too. I've spent some time looking for the solution, but no success.