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Delete selected item
Select a row in the grid and → click the "Delete selected item" button (text may vary depending on the selected language).
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A more finely grained approach to deleting an element can be done by using the Details panel: select a row in the grid , → expand the Details panel if it is collapsed , and click → click on the "Delete" button for the filter element you want to delete:
Deleting the Keywords-AllInList filter.