In Notes or Velocity view on MIDI and Instrument tracks in the Edit window, or in a MIDI Editor window, the Selector tool makes a time range selection that includes all MIDI event types in addition to MIDI notes and velocities (such as program changes, and continuous controller data). The Note Selector tool can be used to select
only MIDI notes and velocities in a time range selection.
When using the Smart tool and pressing Alt (Windows) or Option (Mac), the Selector is available in the upper part of the Track and the Note Selector is available in the lower part of the track.