[AccessD] Select All Records From A Table If Frame Value Equals 4

To all,
 
Gone brain dead I’m sure this is a very simple one, basically I’m using a form which has a start date, end date and a frame with four possible options (Shift A, Shift B, Nights & All).  If the user selects Shift A, Shift B or Nights then the query runs great, I just can’t see how to return all the shifts between the dates if the user selects all


 
I have the following code in the criteria:
 
IIf([Forms]![frmDateSelection]![fraShiftSelect]=1,"A",IIf([Forms]![frmDateSelection]![fraShiftSelect]=2,"B",IIf([Forms]![frmDateSelection]![fraShiftSelect]=3,"Nights","A or B or Nights")))
 
What do I need to do to be able to return all records ?
 
Paul Hartland

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