From The Tags Page
In the left side bar under Roster, click Tags to view the tags page. Then, click the red plus in the bottom right corner to open a new tag sidebar and begin creating a new tag.
Tag Name is the only required field and must be unique
By default tags will not marked exclusive or required, have a weight of 5o, applied individually, and not have any tag aliases.
Click the green check to save your new tag
Or the grey x to cancel
From The Users Page
If you want to quickly add a new tag to a single user you can do that from the users page.
From the users page, click the user you woul like to change to open their user sidebar. Scroll down to the tag section
Type the name of your new tag and click enter. If this tag already exists the tag will be added. If it is a new tag you will see this popup
click the checkbox of the tag you would like to add and then click save.
This new tag will have the default tag settings.