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Working with File Manager
Viewing and changing data sets
To view data stored in a supported data set, use the View Utility or the Edit Utility.
Editing techniques
In-place-in-memory edit

Working with File Manager
- File Manager overview
- Getting started with File Manager
- 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 File Manager, you can manipulate your view of a data set by applying a template.
- Working with the Template List
  Display a list of templates and perform actions on them.
- Filtering records with templates
- Managing data sets
- Using File Manager utilities
- Tape Specific Functions
- Disk/VSAM Data Functions
- OAM Functions
- Using UNIX™ System Services and the Hierarchical File System
- Introduction to programming with File Manager functions
- Enhancing File Manager processing
  You can enhance normal processing of a number of File Manager tasks by supplying a procedure that runs in conjunction with the File Manager 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
  File Manager provides several enhancements to the basic facilities that are available in an ISPF session: Enhanced Reference List, Enhanced Search, Enhanced Change, and PDSE Workbench.
- File Manager Service Provider for z/OS® Connect Enterprise Edition
  File Manager 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

In-place-in-memory edit

This type of In-place edit keeps as many of the records of the data set in virtual storage as will comfortably fit (or as many as specified by a record limit). The data set is updated from these records kept in storage when you enter a SAVE, END, or FILE command.

When File Manager uses this editing technique, it displays "Inplace Edit" in the top left of the editor panel title line.

File Manager uses this type of edit under one of these conditions:

You have selected Inplace edit and the data set being edited is small enough to be loaded entirely into memory.
You have specified a record limit of MEMORY.
You have selected Record Sampling.