Thanks Andi,
On the expression maps you have released you have the string assignments listed as if they were articulations (i.e. in Group 1 as Directions). If say I were using Legato Vib as an articulation having started using the 'Regular' matrix and then switched to Sul G - would the result be Legato Vib Sul G? If so, then I could probably live with having to reselect Regular before changing articulation. If the only option is 240 articulations in a map - then, I would agree, it's unworkable and it would make more sense to switch between string assignments the 'old skool' way using midi notes (I assume that would work?)
For future development, it would be very useful if the matrix selection keyswitches responded to Group 2/3/4 attribute assignments [{]