How to edit the mixer sound of a new instrument
I just added a new instrument to my composition, a Chimes track/staff. The user guide says each instrument has its own mixer track. I want to modify the sound slightly from Chimes to Tubular bells, yet when I click on the staff and select it, then open the Mixer, I do not see the mixer menu for Chimes, only for the main instrument (piano). If I change the instrument in that menu to bells, the entire song changes to bells, including the piano system.
How do I open the mixer only for the Chimes track, so I can change its sound without affecting the piano instrument?