Hi Aevitis - when you say "tags posts on the right side", do you mean these labels in this screenshot here? Screenshot. If those are what you mean, those are not tags assigned by the mod or anything. Rather, when a user submits a snap, they can choose to either leave the snap unspecified or they can choose multiple pre-made options on the dropdown bar such as Video, Image, Current Event, Review, etc. Those options are universal at this time and I don't think you can make custom options for your tribe as of yet. Text posts (such as the one you've created) are their own category separate from snaps.

Edit: I believe these are the only current snap categories available: screenshot.