FMNREFTB DD - Sharing reference lists
The reference list can be saved in an ISPF table in the ISPF user profile or the data set associated with DD FMNREFTB if allocated. You can share reference lists with other users by using the FMNREFTB DD. If you allocate an FMNREFTB DD, ensure that the associated data set is partitioned with a record format of fixed blocked and a logical record length of 80.