Question : Check box on sub form to select list items

I have a from with an embedded sub-form that contains a list of items queried from the database.  I was to let the user click on a check box to select one or more of the sub form items.  I added a check box to the form, but when I click it, it selects all check boxes on all items on the list.  When the user selects one or more list items by using the check box, I want to process the checked items.

Answer : Check box on sub form to select list items

So to do what you want, you have to add a yes/no field to your table.
Which also means that you have to have a step in the process that sets all values to No at the start.

If you have multiple users then this gets more difficult.