Customize Tooltip for Stacked Column Chart

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Good Afternoon,

Have searched the Board for an answer, but to no avail.

I am deploying a 100% stacked bar chart wherein I am summing total seconds (in the hundreds of thousands).

I have created a new measure which converts seconds into hh:mm:ss format (Formatted Measure).

Other than creating a Custom Tooltip Page, is there a quick way to get the Tooltip to refer to this Formatted Measure instead of the Measure in total seconds?

If I drag the Formatted Measure into the Tooltip field well, it shows for all groupings in my stacked column.  I only want it to refer to the group selected.

If I have to create a custom tootip page then I can do that.

Thanks much and appreciate any suggestions!