I have a data entry form that contains a subform.

The main form has a save button for saving information.

The subform is used primarily for illustrative purposes, but contains a
Yes/No Check Box.

I would like an arrangement where once the save button of the main form is
pressed, the value in the Yes/No box is set to "Yes"

I am doing well at Learning Access and VBA, but I've yet to figure out how
to set the value of an item using code, much less the value of an item on a
subform.