There are no straightforward integration possibilities with Norman window coverings: they use a bunch of proprietary technology. The fact that they don’t even have their own Alexa integration is a good sign that what you want to do is not going to be easy.
I don’t even see many possibilities with actuating their remote with a “robot finger;“ it has too many different buttons.
I would start by getting in touch with the manufacturer and asking them how they recommend using it with Alexa. That would give you a starting point.
At this point, there are a number of different motorized shade brands which can be used with smartthings, including Bali, Graber, and Lutron Serena, so most people are going to start with one of those. Retrofitting A proprietary system is going to be tricky.