The piano roll screen displays individual notes as black lines. These lines also indicate the length and pitch of the note. By placing the cursor over the note a window displays the name of the note C2, F5 etc.

By clicking on any of the notes  at the top of the screen and then on one of the piano keys to the left of the screen a note of that duration will appear which can then be inserted anywhere.

Individual notes, displayed as black lines may be modified or edited. As can be seen in (Fig 3) above, the start time of the note  can be altered by placing the cursor over the left side of the note where a little horizontal double sided arrow appears  and  moving it left or right. The pitch may be changed by placing the cursor over the centre of the note till the little vertical double arrow is displayed and by moving it up or down. Finally the duration of the note may be altered by placing the cursor over the right side of the note till the arrow appears and moving it left or right.

This screen (Fig 1) also allows copying and pasting of individual notes, groups of notes or entire sections of the piece.