Getting started: Knowlege library text editor
You can modify tags within each piece of content:
Add new tags. Click on the tags field and start typing. After a few letters, a drop-down will appear with a list of all existing tags.
View existing tags. If the tag exists you can select it. If one doesn't exist, you can create a new one by hitting ENTER or a hard return on your keyboard when you are finished typing the name.
On the right-hand side in the action menu are detailed including who originally created the entry, who on your team last made an update, and times used to know the popularity of a response.
In each record, you can see an audit log of all modifications.