Epson - Custom Paper Size and Manual Rear Sheet Feed

[BradSmith]

I can't figure out how to specify the rear sheet feeder for a custom paper size.  I can create the size AOK using Page Setup > Manage Custom Sizes > +.  This paper requires the manual rear sheet feeder.   But I can't see any way of specifying the rear manual sheet feeder for any custom size.  I'm on a Mac. Epson 3800.  Epson Exhibition Fiber.  Custom size 8in x 20in.  Media Type chosen is Premium Luster (per Epson). 

Am I overlooking something or is this impossible to do.

thanks
Brad 

[fdisilvestro]

Are you using Photoshop? Then you can go to File -> Page setup and select manual rear feed there.

More on this thread

Edit: Maybe a version issue.
Once you define the custom size in the manage custom sizes, then when you go to File - Print, and select Print settings, you should be able to change the feeder to rear

From the Epson support:

If you have selected custom paper, the paper source pop-up menu appears. Select Sheet Feeder if you are using the Auto Sheet Feeder. Select Manual-Front or Manual-Rear if you are using the front or rear manual feed slot.

[BradSmith]

Francisco,
I've edited this post..........   I now see that you can select the paper feed in the print settings dialog window, in both Photoshop CS5 and in Lightroom.    Thank you.   That's it.

Brad