Unit for matrix with unknown size

[gSchegk]

If I have a class diagram with: class ClassA{ m: Matrix}. If I know the size, I can assign a unit to the matrix with m : Unit[h][3,3].
In my case, the size of the matrix is first known during execution. I tried to assign a unit to a matrix with unknown size with: Unit[h][,] which did not work. Is it possible to assign a unit to a matrix of unknown size? If not, is it planned to implement this in the future?

[iils-mriestenpattgenrichter]

By using the matrix class as an attribute type, as in the example here, a unit can be assigned to the attribute.
G+[(matrixTest:ClassA)] matrixTest.m = #[#[1,2,3],#[2,3,4],#[3,4,5]].unit("h")

However, the matrix class as an attribute type is not supported in the solution path generator (SPG).
An implementation of arbitrary matrices with Unit[h][,] is not planned, as the equation environment performs a unit check as well as a dimension check and this is not possible without knowledge of the use of the classes. Matrices with undefined dimensions are often used as data storage and not as equation variables.