Getting started with the REXX Editor
The REXX Editor is the default editor for files with the extensions .rex and .rexx. To open a REXX file in this editor, double-click it, or right-click and select .
If one of the following conditions is true,
the file opens in read-only mode:
- If you open an MVS file that is locked on the MVS Files subsystem, the editor opens it in read-only mode and issues a locked file warning. A file might be locked because it is already open by another user or process.
- If an MVS file contains characters that cannot be correctly converted from one encoding (code page) to another and then back to the original encoding, the file is opened in read-only mode and the characters that cannot be converted correctly are highlighted.
- If the Browse action is used to open the file.
Note: Saving an MVS file
when some of the line lengths exceed the record length limit opens
a file truncation warning. Continuing with the save results in truncated
lines.
Customizing the editor
To customize the REXX Editor to suit your preference, see Setting general editor preferences and Setting REXX Editor preferences.
Shortcut keys
The list of available key bindings in Eclipse depends on many factors, including what view or
editor is selected, whether a window is open, what plug-ins are installed, and what operating and
windowing system is being used. To obtain a list of available key bindings at any time, click
. You can also press Ctrl+Shift+L (on Windows) or 
+Shift+L (on macOS).