You must scope a matrix to include it in your subset.
You cannot delete a system-supplied matrix. You can only delete the usage of specific objects in the matrix.
A matrix using business function as an axis displays only the lowest level (leaf) function. However, a subset that is created for this matrix contains every function and process in the model.
A matrix using elementary process as an axis displays only the elementary processes. A subset that is created for this matrix contains elementary processes plus the processes and functions that are in their direct path to the root.
When used on an axis of a matrix, function and processes receive default-not Short-expansion.
