Alternatives for making ZDT/IMS available
You can make ZDT/IMS available to your users either by concatenating HFM.SHFMMOD1 to your linklist, or adding it to the STEPLIB DD statement in your TSO logon procedure.
To make ZDT/IMS readily available from ISPF, configure your ISPF environment as described in Customizing the operating environment for Z Data Tools.