I applied a solve on position z by 'SOLVETYPE'. Then I need to refer to the result of solve, i.e. the position os z. 

I am trying to using 'GETNSCPOSITION'. According to the EXTENSION DATA ITEMS, this should return the object position and angle and material. However, the viewer shows 'Unknown symbol GETNSCPOSITION.'

The similar command 'SETNSCPOSITION' works fine. But not the GETNSCPOSITION. It seems in the editor, it does not recoganize it as a legal command

Can anyone help something is wrong?

Thanks.