DS / Overlay keyword

[Michael Jacobsen <MJacobsen@xxxxxxxxxxxxxxxx>]

I have a question about using Overlay(Fieldname: *Next). 

This (simplied example) works: 

D DSName          DS
     D   Field                        3A    Dim(3)
     D   Part1             1        3 
     D   Part2             4        6 
     D   Part3             7        9 


But I want to do this without using positions to define the fields. 


I tried this:

D DSName          DS
     D   Field                      3A    Dim(3) 
     D   Part1                      3A   Overlay(Field: *Next)
     D   Part2                      3A   Overlay(Field: *Next)
     D   Part3                      3A   Overlay(Field: *Next) 

And I get this error:

RNF7303S Subfield PART2 defined with keyword OVERLAY is too big; 
specification ignored.
RNF7303S Subfield PART3 defined with keyword OVERLAY is too big; 
specification ignored.

I want Field(1) = Part1,  Field(2) = Part2,  and Field(3) = Part3

Is there any way to do this using Overlay or without defining the fields 
using positions?  The fields Part1, Part2, Part3, are also already defined 
in an external file.  I don't know if that will make a difference or not.  



Thanks!

Mike