How do I delete a filter I have created?
To delete an existing filter:
1) Open the "Filter" dialog box by selecting 'Menu/Database/Filter the database...' or by pressing F8, or by clicking on the Filtering icon on the toolbar.
2) Then, click on the 'Recall' button to display the "Filter: Open Existing" dialog box.
3) Select the filter to delete and click on the 'Delete' button. Please note that only filters you create can be deleted. The built-in filters cannot be removed.