This sample illustrates use a list box to simulate a simple subform. The user can either double-click the listbox or click the edit button. Then a popup form appears which allows him to select multiple values. These values are written to a separate table which hold the values in a One-to-Many relationship with the main table.

The important code is behind the form "frmVacuumForcepsIndications". The query "xxxqrySelectedIndicators" is not used directly, but is the basis for the embedded SQL in the Form_Activate event of "frmVacuumForcepsIndications". I left it in to show it graphically.