When you have no further use for a tag group, you can delete it.
You must have the Manage Marks/Tags permission in a case to delete tag groups.
To delete a tag group
In the left pane, select the case from which you want to delete a tag group.
If Discovery Accelerator lists a lot of cases, you can filter the list with the fields at the top of the pane. As well as filtering the cases by name, you can choose whether to list any research folders that are associated with them.
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