Working with Z Data Tools
- Z Data Tools overview
- Getting started with Z Data Tools
- Viewing and changing data sets
  To view data stored in a supported data set, use the View Utility or the Edit Utility.
- Creating and editing templates
  For many tasks performed with Z Data Tools, you can manipulate your view of a data set by applying a template.
  - Template types and structure
    A Z Data Tools template is a collection of information that you can use to select and format records and fields in an application data set.
  - Template repository
    The template repository is a VSAM KSDS file that is used to associate a data set or resource name with its corresponding template.
  - Managing templates
  - Manipulating the display of fields in records
    - Selecting and deselecting fields
    - Changing the field display order
      - Holding fields on the display when scrolling
        You can hold fields so that they are always displayed regardless of how far you scroll.
      - Toggling the hold status of more than one field at a time
    - Changing field headings
    - Changing field attributes
    - Displaying alphanumeric fields in long hexadecimal
    - Defining and changing date and time attributes
  - Managing templates with the Template Workbench
  - Specifying scrambling options
  - Mapping fields between templates
  - Copybook View and Print Utility
    Use the Copybook View and Print Utility to view or print field definition information.
  - XML templates
    A Z Data Tools template can be exported to an external XML format using the Template Export utility.
- Working with the Template List
  Display a list of templates and perform actions on them.
- Filtering records with templates
- Managing data sets
- Using Z Data Tools utilities
- Tape Specific Functions
- Disk/VSAM Data Functions
- OAM Functions
- Using UNIX™ System Services and the Hierarchical File System
- Introduction to programming with Z Data Tools functions
- Enhancing Z Data Tools processing
  You can enhance normal processing of a number of Z Data Tools tasks by supplying a procedure that runs in conjunction with the Z Data Tools process.
- Redefines criteria
  Redefines criteria can be specified for a field with a REDEFINES clause, or a field that is the target of a REDEFINES clause.
- Enhanced ISPF: Reference List, Search, Change, and PDSE Workbench
  Z Data Tools provides several enhancements to the basic facilities that are available in an ISPF session: Enhanced Reference List, Enhanced Search, Enhanced Change, and PDSE Workbench.
- Z Data Tools Service Provider for z/OS® Connect Enterprise Edition
  Z Data Tools Service Provider for IBM® z/OS® Connect Enterprise Edition enables client applications to access IBM Z data sources using z/OS Connect.
- Function and panel reference lists

Toggling the hold status of more than one field at a time

You can toggle between holding or “freeing” more than one field at a time by entering one of the following hold commands in the Cmd field of the Field Selection/Edit panel:

HH: Holds or “frees” a block of fields.
Enter HH twice: first in the Cmd column at the start of the block of fields you want to hold or “free”, and again at the end of the block. Z Data Tools toggles the hold status of each field in the selected block.
Hn: Holds or “frees” n fields.
Enter Hn in the Cmd field of the first field you want to hold or “free”. Z Data Tools toggles the hold status of each field, starting from the first selected field and continuing for n fields.