How to shuffle within a specific dimension in a multidimensional array of complex numbers

I want to shuffle a 3-dimensional array with complex values, in such a way that elements are randomly rearranged along the 3rd dimension only.

For example, the 3D array of integers A (I remind that I'm looking for the same solution but for complex numbers array):

A(:,:1)= 1 2 3 ; 4 5 6 ; 7 8 9
A(:,:2)= 10 11 12; 13 14 15 ; 16 17 18

After shuffling the third dimension, a possible output could be:

A(:,:1)= 10 2 3 ; 4 14 6 ; 7 17 18
A(:,:2)= 1 11 12; 13 5 15 ; 16 8 9

How can I do this?

The only solution I've found includes compiled c function which doesn't work with a complex-valued array.