Permissions: Gallery Remote transfer pictures to existing sub-albums

Since deploying our site (e107 with embedded Gallery2), I have been the only one uploading pictures. I now want to add a small group of people who can add pictures to existing albums. I do not want them to have the ability to add albums or perform other maintenance/administrative functions on the site. How do I go about setting these permissions.

I searched through the forums and documentation, but did not see the answer. Perhaps I'm not using the right terminology.

Any help would be much appreciated.

Thanks

d.dub/