you can save the devices to your personal library and it will save any learned commands that you added.  then when you add an ir device on your next project, you can add it from your library.   you can also copy and paste pages/buttons from one project to another and it will automatically add any associated devices that are used on that page/button.

you can also copy and paste hex commands, or convert pronto files into the nevo.   i've had good luck searching for pronto files that have the i.r codes that i'm looking for, and either converting the whole file, or just copy and paste the hex code that i need out of that file.

do yourself a favor.  download and install pronto edit, and pronto edit NG.   you can find both in the files section on this website.