The following picture shows how to model this element type:
You need an ID definition to describe the properties which uniquely identify an element of this type.
In addition, an icon has been associated.
The match name SEARCHLINE must match the name returned by the REXX procedure TAUTOSRC which returns the result from an ISPF search utility.
If the "Search…" action on a partitioned data set is executed at run time, the member records are displayed as a tree table like in the figure below: