- Go to "File" for the desired map
- "Open osu in notepad"
- Ctrl + A then Ctrl + C to get the data
- Make a new, desired map with the audio and background of choice
- Find your Osu folder and goto "Songs"
- Find your beatmap
- Open the .osu in notepad and take note of the beatmap IDs
- ctrl + a ctrl + v
- edit the beatmap IDs to match the one of the new map
recommend only for situations like mine; unsure of Osu plagiarism rules