Manage tags
From the Tag Management tab, you can view, edit, and create tags. Once you add a tag, users have access to it for their projects.
Note
You must have project or organization admin permissions to complete this task.
Select Admin > Project, then select Tag Management to add, edit, or delete tags.
In the Add/Edit Tag window that opens, complete or change the information about the tag.
Click Save.
From Single Item View, any user can now add the tag to their projects.