Contact tags are used when you need to filter and report on specific categories of contacts (eg looking for local ceramic artists). You are able to add as many contact tags as necessary for that contact (local, ceramic, artist), they do not need to be taken from the current list, new ones can be typed in the area provided. The tags you enter in here will only appear within your gallery’s account and will not affect anyone’s usage.
For more details on how tags work, see the area on Searching and Filtering.