The configuration options for 'IMG images (Xerox)' and 'IMG images (Xerox, Barr)' are common to both formats.

Choose an IMG images output format from the Options|Configuration dialog (f8) then click the Options... button on the 'General' page, or
Choose an IMG images format from the File|Export dialog (Ctrl E) – see Exporting files to IMG images, IMG in Barr format file export. Then click Xerox options...
Click Apply to accept the 'Options' page configuration.
EscapeE 'eE' iconEscapeE resumes displaying the 'General' page or
the Export dialog.
Click to expand/collapse hidden textTo set options for Xerox IMG export

Blue diamond bullet Tip: You may set up a field definition to force a particular type of page to feed from the desired tray – see Setting field actions.