Subfile field conditioning

I have created a subfile, and within the subfile format, I have a date
field.  Certain conditions cause the date to be *LOVAL, at which times the
date is not applicable to the record being displayed.  What I have done is
create an alpha field, into which I push the date if it isn't equal to
*LOVAL, or *blanks if it is.  

 

This works, but my question is this:  is there a way to place two
overlapping fields in the DDS, and condition them somehow to show the date
field under certain conditions ( <> *LOVAL), or the alpha field under the
opposite conditions?  I have tried using conditioning indicators on the
subfile format, only to get 

 

* CPD7814      30        1      Message . . . . :   Option indicators not
allowed on fields in subfile record.

 

Is there a better way to do this?

 

 

Tony Carolla

MedAmerica Billing Services, Inc.