How do I put a note on the piano roll in lmms?

When I click on the piano roll editor icon, it displays a message "Please open
a pattern by double clicking on it". I don't know what it is talking about.
Where do I find a pattern? And in which window do I double click on it?

Maybe a tutorial on youtube is needed here.


Mark Hobley
393 Quinton Road West
B32 1QE

Email: markhobley at hotpop dot donottypethisbit com