ALR MIDIEditor 40471
From CockosWiki
Filter events... (Cmd ID 40471)
Sections: MIDI Editor, MIDI Event List
Opens the "Filter Events" dialog. Heres you can choose which events are displayed in the MIDI editors. This is also where you switch the editable item, if multiple items (secondary items) are present in the MIDI editor window.
Related action: Filter: Toggle filter on/off