How to get the "Add New" button to appear in report results

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I have two contact search reports that when added to the same contact workspace, in a tab, one report shows a "Add New" button above the report data that allows me to add a new incident for that contact with that contact selected in the incident, while the other report does not show this Add New button (see attached image). While I know that I can use <Ctrl><Shift><i> to create a new incident, that method doesn't automatically select the open contact for the incident like using the Add New button does. Any thoughts on how to control when that Add New