I'd like to see a shape that can be used to easily produce 3-dimensional matrices (also known as an Y-matrix or Y-shaped matrix), that can visualize data relationships between 3 different, but related properties. Below is an example of such a matrix

It would be great if you can add these as empty shapes, and use the shape properties to add and remove additional rows / columns on the X, Y and Z axis. For each row / column a text label is added. Which shapes you add into the cells, will be up to the user.
I'm currently drawing these by hand with lines, which is a pain 😅
