Epson WorkForce Pro WF-M5799 Workgroup Monochrome Multifunction Printer with Replaceable Ink Pack System - Manual (Page 118)

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You see the available Printing Presets on the left:
2. Place your cursor over one of the Printing Presets to view its list of settings.
3. Click on a preset to change its settings, or use any of the available options on the screen to control
your printing presets.