Hi, can I rephrase what you are looking for so I understand it right?
So, you have built a list of patches in a listbox and when the user select one of the patch you would like to send a sysex to the synth?
No multi-select allowed.
Direct send of the sysex on click (personally, I don’t think this is good. users can make mistakes). What I implemented in my Pro2 panel is that you select a patch then you click on a button to send the message.
That way the user is deliberately deciding to send.
