Controlling Visible Note Range
The visible note range in a MIDI track can be controlled in two principle ways: the note scroomer, or the scroll wheel of your mouse.
Setting the defaults
The default note range shown in new MIDI tracks is controllable in Edit > Preferences > MIDI
Using the scroomer
The scroomer offers two kinds of control.
Shift the note range
"Grab" the in the middle and move it up or down - this adjusts the absolute note range displayed up or down.
Expand or shrink the note range
"Grab" the top or bottom handle of the scroomer, and move that up or down - this adjusts the extent of the note range displayed.
Using your scroll wheel
While in internal edit mode (used for editing MIDI), several scroll operations can be used to control the visible note range: