I think you need to ask in the forum for digital editions
If you will start at the Forums Index https://forums.adobe.com/welcome
You will be able to select a forum for the specific Adobe product(s) you use
Click the "down arrow" symbol on the right (where it says See all our Products and Services) to open the drop down list and scroll
As I understand it, there was initially no access to DRM content on the Nook GlowLight Plus. However, Barnes and Noble recently came out with a fix, which is available here: NOOK GlowLight Plus software update 4.5.1 - Adobe DRM ePub and PDF file support.
You may also want to reference this discussion on the Barnes and Noble site for feedback on applying the update: New Nook glowlight plus and Adobe digital editions | Nook Support Forums.
In case you have further questions about using DRM on the Nook, I am moving this discussion to Adobe Digital Editions.