I don't know if that is Integrated into the out of the box App. you should be able to use the data model viewer to see this or maybe selection tools as you can search field-names there. if it is not possible just ask the Sysadmin to duplicate it and transfer ownership to you.
You will likely need to customize it and hit the rest endpoints and add code to extract the Tags, I know custom properties are exposed in the Apps rest endpoint used by the operations monitor Tags are likely present as well.
However for the case you describe I'd lean towards custom properties as there is a great deal more control over the structure where as tags are kinda free-from and can apply to everything.