Combine row group checkbox with Collapsible groups

hiral2cool

here are two different implementations
of
1. Row group with Checkbox Selection - https://jsfiddle.net/gyrocode/2b0revo8/
2. Row group with Collapsible Feature - live.datatables.net/cecosoru/1/edit

How can i combine both approach into single Datatable so i can make row group show/hide with select all functionality

Thank you.