Change the clef on a staff

Activate the  tools tab (using the mouse or the Alt+N hotkey).

• Press the button for the desired clef . If it is necessary to set the clef from the expanded list, press the arrow of the clef button , select from the list.
  Move the mouse cursor over the desired position in the staff and press the left mouse button.
• Set the caret position of the staff in the bar where the clef was changed. Press the keys Shift+G (Violin clef), Shift+F (Bass clef), Shift+C (Alt clef)

All bars from the current position to the end of the score will display the new clef.