How to create expandable table row? (not a child row)

There is a lot on here about how to create child table rows that can be expanded but I haven't been able to find any info on simple expandable parent rows. One of my columns contains a lot of text and I would like to have my table so that the rows are no more than one line in width, with a clickable "more" button that expands the table row.

Any information on this would be much appreciated thanks,