That is currently unavailable.
You can track the progress on that case here https://github.com/handsontable/handsontable/issues/4441 as the beforeAutofill hook is the one that controls the data being populated when a user uses fillhandle.
That is currently unavailable.
You can track the progress on that case here https://github.com/handsontable/handsontable/issues/4441 as the beforeAutofill hook is the one that controls the data being populated when a user uses fillhandle.