You can edit only those filter templates that are associated with the contact lists of the campaign.
You can edit the filter templates only if the campaign is in a running or callback state.
If the filter template is associated with the contact list of an attribute-based campaign, do not configure sort condition attributes that are already configured as attributes for attribute-based dialing on the Campaign Creation page of the campaign in POM. This is because POM, by default, sorts the filtered contacts based on the attribute-based dialing attributes.