I'm unsure of what I'm doing incorrectly. I've created a calculated field, verified it, and checked "save calculation to dataset" but when I click the X to exit out of the Beast Mode editor, there is a warning that says, "1 tab has unsaved changes". Can someone share what I've missed? Thanks. UPDATE: I realized checking the "Save calculation to DataSet" allows this calculated field to be available for other cards so I was able to save it for the card — I'm still uncertain of how to save the actual tab if this box is checked. Thanks.