Iḿ talking about this:
http://www.datatable.../extras/colvis/
DataTables in GroceryCrud uses the TableTools "extra", but don't include ColVis by default.
The initialisation example don't work at all:
"sDom": 'C<"clear">lfrtip'
Is this a problem wih the version of Datatables.js used in Grocery Crud?