Add fields but not to show all in (front) table

Hello

I just bought DataTables Editor. I have the following concern:
For example I want to add 8 fields with the New button, but make visible only 5 in the table. How can I do that please?

The same concern for Edit; I want to edit not only the field that is in the table, but all data recorded for that input.

Thank you for your help
AZ