Thou I don’t recommend for starters dealing with C++ plugins unless they are absolutely comfortable with the engine usage, the use for this plugin does not differ from any other plugin in the marketplace, with the difference that you need to install it yourself instead of having it automated by the launcher. Having started with blueprint doesn’t mean you can’t add later C++ code, the opposite is true aswel. I have posted a video on how to migrate the asset to a new project which has the overall steps to make it work even if you started with blueprint:
There are other videos which deal with different things, you might want to check at the same channel.