How to migrate Notepad++ settings?

Problem

I am trying to portabilize every program I use if possible, and Notepad++ is on the list. The only problem is that I've had a native installation until now so that I'm not totally sure which settings files need to be moved to the portable directory. Surely there's a function tucked away somewhere in NPP exactly for this purpose, or some plugin out there? I mean the developers have literally thought of everything else, yet this is the one thing I cannot find specifically anywhere in the NPP wiki or otherwise, and I don't want to miss an important file. Here is the closest I've gotten: Notepad++'s configuration files and Where are all the files? Should I just copy every configuration file listed on the first link?