The CS-80V has a ton of parameters that can be mapped to a midi controller. While appeggiator play can be used in "Learn" mode to map it to a controller it is not one of the assignable parameters. I use Forte to host VSTs and it allows to run various instances of the CS-80. If Arpeggiator play was a parameter I would be able for instance to have the expression pedal to control arpeggiator play in only one of the CS-80 instances.
