I'm a newbie--educable, but virginally unexperienced. I select a style in BB 2020/WIN64, such as _J140TBS.STY, which has a nice combo with a trombone soloing. What I'd like to do is mute the trombone for most of the song, but enable him for a number of bars at one repetition of the form. Unfortunately, if I select a range of measures and indicate that I want to mute the trombone for those bars, the trombone is muted for the entire song. What am I doing wrong? Thanks!