The prefix or pattern you specify is that which is to the left of the cursor. For example, if the field is 'CLIST(ABC)', with the cursor under the letter 'S', then the pattern used is 'CLI'. For more information, see Cursor position sensitivity.

• If the content of the Data Set Name field does not begin with a quote, your TSO prefix is added. If the field does begin with a quote, no prefix is added. Unquoted data set names are not processed if you do not have a TSO prefix (except for on the Data Set List Utility panel).
• The pattern can be any pattern similar to what you use in your data set list (except that you don't have to specify your TSP prefix. Trailing wildcards are automatically added. For example, in a Data Set Name field, typing 'CHR' will result in a pattern of prefix.CHR*.** when searching the catalog.
• If you include a left parenthesis, followed optionally by a member name or pattern, the data set is assumed to be a PDS and the member name is returned. For example 'CLIST(XY' would search prefix.CLIST for members matching the pattern XY*. A trailing * is always added to the member name to create a pattern.