M Modify File/Library element/Job var.

M Modify the contents of a data object (file/Job variable/library element).

The Action Code M results in the CFS Display/Editor being called and the file/library element being opened in Modify mode. The Modify mode remains in effect until switched off with NM (No Modify), or an NF (Next File) command is executed for the next file flagged with D (Display)/M (Modify), or until the Editor is terminated by pressing the K1 key.

If the file/library element is only to be opened in Read mode, the D Action Code should be used instead.

For a full description of the Display/Editor system, see Chapter 8 "CFS Display/ Editor".

Notes:

Modifying very large library elements can cause space problems on PUBLIC devices, since CFS creates a temporary file for the element, called #Z[.type] [.elementname].

Modify Actions are processed, as are Display Actions, in the order in which they were specified. To display the next file, enter NF or D in the CFS command line. The LF (Last File) command can be used to return to the previously displayed file. To return to the CFS file list from Modify mode, enter the LST (List) command, or press the K1/F1 key.