PIXMA PRO-300 Questions about Professional Print & Layout software

[CGK222]

Two issues I could use some help with. 

1. Apparently this can only be used as a plug in?

2. It seems like it will only print one photo per page when used with Lightroom? How would I layout more than one photo?

(I'm using Windows 10, printer is the Pro-300.)

Thanks.

[jrhoffman75]

Canon : Manuals : Professional Print & Layout Guide

It is standalone as well as plugin.