DFKKLOCKS update TDATE

I am creating a custom program to update DFKKLOCKS.TDATE field.  I thought that Event 1801 would provide a standard option to update the values but it does not appear to be working as I had thought it would.  It is the preferred method of the client to use an Event.  Does anyone have an idea of an event that allows this update to occur?  Alternatively, I can direct update the table.

Thank you.