The little plus marks aren't there for me :I. I have my own group, and I know what the problem is here. In the settings of the group, you have it set up so that members can't contribute to the folders. (if that's intentional, just ignore the rest of this comment
) To fix this, you go to the group. Then go to the "Admin Area", now in the upper left corner you'll see a button called "Manage Members." Click on that, now look on the left side, you should see a list of categories "Founder, Co-Founders, Contributers, Etc." Click on the "Members" category. Now look to the right, you should see a list of things you can allow people to do in the group, like allowing members to submit art to specific folders. I hope this helps, and that I wasn't just bugging you with stuff you already knew
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