Chart Editor controls
Ctrl+Mousewheel
Zoom in-out.
E/Q
Change sustain length of the selected note.
Square bracket keys
Change the current note layer.
I/O
Move the chart view left and right.
R
Go to the start of the section. Hold Shift to go to the start of the first section instead.
W/S / Mousewheel
Move the chart view up and down.
A/D
Move to the previous or next section. Hold Shift to move by 4 sections instead.
,/. (Comma/Period)
Change the current snap mult.