I have an event that is one week long (7 days), with three functions happening each day (7 days - 3 columns per day).
There are 11 groups with various number of possible attendees listed in rows. Attendees of a given function is indicated by entry of a 1 or 2 (attending partner), Blank = not attending.
I would like to show a list of the attendees for a given function by clicking or moving my mouse pointer on the event function column header.
The list would need to be automatically updated when the attendees status changes (entry or deletion of 1 or 2)
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