Mapping between planes and dimensions in jitter matrices

Dear all,

What is the simplest way to convert between matrix dimensions and planes?

e.g.:

I make a jit.matrix 6 float32 10 20

Where
planes = rgbxyz
10 = objects
20 = object history

And where in one instance I want to interpret this as: jit.matrix 20 float32 10 6
so I can use a jit.iter to iterate across the 20 dimensions, producing the color/position history of each cell as a list...

Can it be done neatly?

Thanks,

John