Child rows with Responsive

Hi,
This plugin’s working really well, but there’s one formatting issue I can’t figure out.

I only want the first three columns to display by default; the remaining five columns I’d like to appear as a child row when the user clicks on the green button. I’m not sure how to force this.

You answered a similar thread on this a year ago, where you referred to the ‘Responsive’ extension manual page https://datatables.net/extensions/responsive/classes. From there it looks like I need to use the none string code, but I don’t know how to format the code correctly for my 3-visible, 5-hidden view, or how exactly to place it within the gdoc_table_html section in my functions.php file.

Thanks very much if you can help me with this!
Pacey86

https://wordpress.org/plugins/inline-google-spreadsheet-viewer/