Sorry for double posting but I am getting nowhere in the Apple forum-nice people but no useful suggestions. SO, I have a violin part that is in 4/4 and in several places it has half bar arco and the other half Pizzicato, I made individual regions for them but when I play the track back all regions use the EXS setting from the first region,the assignments to use Pizzicato violins change to arco like magic. I wasted a lot of time changing the settings back but still the choice is made by the EXS and it is not what I need. This may be an old feature of the EXS-you have made a mistake and assigned a different instr. to this region! The mistake has been rectified for you automatically. But that window never shows up,so do any of you know about this EXS trick? I am still in 9.1.5 and 10.5.8. Thanks in advance.