The user gains access to the "Delete all List Patterns" function, from the ACBA Tools menu - Audit Tools, List Analysis, Pattern Lists, Delete all Pattern Lists.

This is a single operation without any selection requirement. The user will be offered an escape route through the following message box.

The importance of this notification is that the ACBA Tools will no longer have a record of where the file that contains these parameter lists is held. It is worthwhile checking the location details, that can be seen in the amending references dialog, before proceeding with deletion.
The work around to this problem is to delete and re-load.