Welcome to the LMMS Wiki! Here you'll find the documentation, tutorials, guides, resources, and much more.
Manual [wiki] [pdf] (for v0.4.12)
How to Report Bugs
Developers (Wiki on GitHub)
Creating a Theme
Theme Porting Guide
If you want to copy all notes in a ordinary segment, double click it (opens piano roll), mark all notes with CTRL + A, and hit CTRL + C. Paste with CTRL + V