Hello everyone,

I would like to know if there is a function that obtains the values selected in the group check boxes so they can be counted and represented in a chart.

Not sure I understand your question. A field formatted as a checkbox set stores the checked values as a return-separated list (place another instance of the field, formatted as an edit box, on the layout in order to see this). So there's no need for "a function that obtains the values selected" - they're just there. To count the checked values, use the ValueCount() function.

I believe a chart will require records.  It sounds like those checkboxes should have been records in a related table.  Checkboxes are great for many things but data which may need to be reported on later and grouped by the checked values isn't one of them.