I was wondering how much it'd be to have more the option for more than one layout. Your software looks good, and I rather not redo the work to get my preferred layout working.

Specifically, I was thinking of this: https://www.le-nouveau-clavier.fr/english/#1a-new-evolution-of-the-keyboard-is-still-possible-or-the-grand-return-of-the-symmetrical-piano

So it's two whole tone scales, the bottom one starting at c and the top starting at c#. The resulting layout is isomorphic. Given that there are 8 rows in the linnstrument, this pattern could be repeated four times on top of each other, shifted by 2 octaves each time, so there's no overlap. This arrangement would cover 8 octaves in the 200 model. So it'd be like having four pianos stacked on top of each other, with the benefit of an isomorphic layout. The layouts could be shifted by one octave as well, so that octaves are two squares above.

To be honest, I find all the layouts I've seen so far deficient due to the ergonomics of the linnstrument. Anything that requires a lot of vertical movement is going against the natural angles of the wrists. Not an issue if one could hold it like a guitar, which I've tried but is not exactly ergonomic either. And I own an eight-string guitar also tuned in fourths like my linnstrument, and it's a world of difference. So I am wondering if this layout could be an answer to have a more horizontal way of playing while keeping the isomorphic properties of the linnstrument. The main disadvantage mentioned in the article is getting lost due to the symmetry, but this issue is not an issue with the linnstrument because of the LED lights.