@LightandSound Wow, nice work, and thanks for sharing!

@myhomestudio I'm using Mojave, works fine!

@LeeC
example movie

this is one of the scales:

const var Ionian = [
"Ionian", "C3", "D3", "E3", "F3", "G3", "A3", "B3", "C4"
];

then in the noteon callback I use

for(i=1; i<scale.length; i++)
    {
        tmp = Engine.getMidiNoteFromName(scale[i])+(Message.getNoteNumber())-60; //  get midinote number from name
        Engine.setKeyColour(tmp, KeyColour);   //  Colour the keys
        notes.push(Engine.getMidiNoteName(tmp));
    }

to push the scale in to a new array (notes), I'll start the for loop at index 1 cause index 0 contains the scale name.
So the "root" note will always be the key I play.

Sorry if my explanation is not so good, but I hope you understand what I mean.

cheers /Ulrik

the scales are in an array that will set the arpeggiators "Num Step" and "Note Numbers"
array.length = sets the value for Num Step
and each index value sets each Note Numbers value

@Christoph-Hart Ok

@Alex-Paradis are the old sample maps still in the sample maps folder, Even though you don't use them?

Congratulations to you all!! It's been exiting to follow your work and discussions here at the forum, and it really looks great!
Cheers

@d-healey it's like changing items in a combobox or Viewport, I have to set it to zero then apply the new items

@hisefilo Ok, thanks.