Here are some useful keyboard shortcuts for Melodyne on macOS
Function | Keyboard Shortcut |
Zoom both axes simultaneously | ⌘⌥ with mouse wheel |
Zoom in on a blob or the current selection of blobs | ⌘⌥ and double click |
Restore the previous zoom setting | ⌘⌥ and double click in the editing background |
Zoom the display horizontally and/or vertically | ⌘⌥ and drag in the Note Editor |