The Reflist pull-down menu has the following choices:

Reference Data Set List

Displays a list of up to fifteen data set names that have been entered in the "Other" Data Set Name field and other fields in ISPF that take a data set name as input.

Reference Library List

Displays a list of the last eight ISPF libraries that you have referenced.

Personal Data Set List

Displays a list of up to thirty data set names that you have created and saved.

Personal Data Set List Open...

Displays the Open dialog for all Personal Data Set Lists.

Personal Library List

Displays a list of up to eight ISPF Library specifications that you maintain.

Personal Library List Open...

Displays the Open dialog for all Personal Library Lists.