PIxma Pro-100s + Premium Matte paper

[rsr]

Apologies if this question has a blindingly obvious answer, but as a new user of the Pixma Pro-100s, I am struggling to find out how to select the Photo Paperf Pro Premium Matte paper in the printer driver. I'm using Lightroom on Mac OSX Sierra 10.12.5. The option to select the media type in the print dialog has the Premium Matte option disabled whereas other paper types  such as Photo Paper Pro Platinum can be selected. I am trying to use A3 paper.

Any and all help will be much appreciated,

Roy

[jrhoffman75]

Select A3+ Margin 30

All fine art papers require the 30mm border. 

[rsr]

Many thanks for taking the time to respond, John - very much appreciated.

After selecting A3 (Art Paper Margin 30), everything works like a dream, but the requirement for a large margin is not ideal for my purposes, alas. 

I should have done a little research before buying the paper... 

All best, and thanks once again for your help,

Roy

[jrhoffman75]

You can select Matte Photo Paper and avoid the margin requirement. 

If you do you the printer won't use the gray inks, but depending on what you are printing it may not make a difference. Give it a try.