access element of Point(x,y,z) Expression?

[potrero]

NX8.0.1

For a while now it's been possible to generate a point from a simple expression in the form:

myPoint = Point(x,y,z)

Can anyone help me figure out how to define a new variable corresponding to just the "x" or "y" or "z" of the "myPoint" variable? pseudocode might look like:

myZ = third(myPoint)

Of course, this won't work because myPoint is a "Point" expression, not a "List". So I think I'm really close to a solution, but I'm not quite there yet. Anybody have some tips for this?

Thanks in advance.