The management of tags used in forms can be configured in System Management > Tags

From here you can create and edit tags and set them as active or inactive.

Click to create a new tag.

The following screen appears:

Name the tag and click on Add Tag. The tag will be added to the main Tags list.

Editing a tag

Click the name of a tag to edit it.

You can edit the tag name, and Deactivate or Activate the tag using the Actions menu, to move it between the lists of Active and Inactive tags.

You will not be able to Deactivate a Tag that is currently in use on an Activity. In that situation, the Actions menu will not be shown.