Main keyboard shortcuts available in Modelio:
Ctrl+A in diagram edition view: Selects all elements in the diagram.
Ctrl+C in explorer views: Copies the selected element.
Ctrl+D in explorer views: Moves the selected element down one level.
Ctrl+M in diagram edition view: Masks the selected element.
Ctrl+S in diagram edition and explorer views : Carries out a save operation.
Ctrl+U in explorers view: Moves the selected element up one level.
Ctrl+V in explorer views: Pastes the selected element.
Ctrl+X in explorer views: Cuts the selected element.
Ctrl+Y in diagram edition and explorer views: Redoes the last cancelled operation.
Ctrl+Z in diagram edition and explorer views: Undoes the last operation carried out.
Ctrl+Alt+click on an association in the explorer view: selects the opposite end of the association.
/ in diagram edition view : Switches to 1:1 scale.