There are a number of one finger chorders, that allow you to define the chord and voicing and apply it to a singe note, such as Insert Piz midi Chords.
But I've been wandering abut a different approach, based n a key switch style, and wondered f it already exist.
Is there a chrder were in a low octave range 'keyswitch style', you can defince the voicing, (major/minor, Triad, 7th, 9th, inversion open/closed, drop two/four), then use the higher range for defining the root. So
C1 = major triad
C#1 = minor triad
D1 = major triad 1st inversion
D#1 = minor triad 1 st inversion
E1 = major triad 3rd inversion
F1 = major 7th
F#1 = minor 7th
G1 = major 7th open voice
G#1 = minor 7th open vice
A1 = 7th
B = 7th open voice
Pressing F1 and C3 would give me a CMaj7
Pressing G#1 and C3 would give me a Cm7 (open voice)