How do I copy an existing score that I have already done in Musescore 3 consitering my notes below.

I would like to use the same score from my existing song in musescore 3 and copy it (duplucate it) and then change the Lyrics but still keep the same exact Music and end up with: 2 separate identical songs musicaly but with a differnt Titles and different lyrics. I can handle changing the lyrics, but i dont know how to copy and put it right back into Musescore 3 so that both Songs are in Musescore 3.

Many thanks
-Jan