Adding Chromatic Chords to a Palette

Thanks for your reply.

The black notes, as a named scale, are the Eb minor pentatonic scale.

Is it possible to add an Eb minor pentatonic horizontal scale to a C major horizontal scale?

If so, how do I do that?

If I add half-wholetone and whole-halftone scales to the major scale, I now have all 12 degrees represented, along with the five desired dim chords.   So far, so good (neglecting all the extra stuff I would prefer to not be cluttering up the palette).

Now I want to add the desired 7b5 chords.

I see a menu item for 'Add Chord Outside Scale Set', which seems promising ...

The "More ..." selection here pops up the catalog.

So I figure I should be able to select the 7b5 chord and click OK and that will do it.

But it doesn't work that way.  There is no "OK".

So, how can I add a 7b5 chord on a given degree?

I'm sorry, I don't quite follow.

First, I'm working off of Db in the picture shown.  (Maybe you meant "Db" in your comment?)

But I must not understand something.  I'm thinking that with the 3 scales I have added, all12 tones are represented, and now every chord should be possible (and on the menu).   It seems I'm not thinking of this correctly.

Summary question:   Starting with just the horizontal (C) Major scale, what do I add and what do I do in order to get 7b5 chords on the five black keys?  (in the margins, if that's where they have to be, but ideally in their linear positions by degree).

Thank you.  I appreciate your comments, but I'm still stuck.

This video will show where/why I'm stuck.

https://app.screencast.com/lijhhh42MsZaF

Perhaps it will clarify what I haven't been able to put across in words, and suggest how I could be best be advised from here.

Ah, very good, thank you!

Acceptably close to the goal:

Palette file attached.

Two certainly non-critical nice-to-haves come to mind:

1.  An operation that would move any margin chords and insert them in the in-line representation, per their roots.  This would let us represent linearly chords on (up to) all 12 roots without having to add extra horizontal scales and the extra chords they produce.
2. Ability to use a drawn rectangle to multi-select chords on the palette, and then be able to cut or delete them.   This would let us go ahead and add extra horizontal scales and the extra chords they produce and then quickly fix up the palette "by subtraction" to be just the chords desired.

If you ever have a slow few days ...  <g>

Thanks again!

I note that deleting these 7 chords requires 7 separate manual cut or delete operations.

This is because doing cut or delete on the (surrounding) Gb triad currently does not delete the 6 different extended chords surrounded by it.

If we could optionally have deletion of the "outer" also delete the "inner", then cleanup by subtraction would be much quicker.

Maybe offer 'Delete' and 'Delete More' (or 'Delete Plus')?

Another possibility - 

Since left-click selects, Alt- or Ctrl- left click could multi-select, after which a cut or delete could whack 'em all at once.  

This would be a perfect use of keyboard modifiers, if I may say so.  <g>

That's actually what Ctrl-left click does.

Indeed it does.   Ack, my bad!

It was still alot of clicking to do the subtraction on every single extra chord, but only @ half as much as when I was selecting delete after each one!

Here's my palette, in linear form:

I recommend the passing chords, dim7 passing up, 7b5 passing down.

File attached.    Cheers, and thanks!