Here's a fun little fixture to demonstrate Moving Path axis helpers within a profile and model.
It's the ubiquitous "LavaLamp"tm. This one is in the 400 Series. 16.3 inches tall. I own several....
Has Dim channel for the "Wax" blobs to emit light.
Has "WAX1","WAX2","WAX3" encoders. These are merely user friendly attribute names for the actual subattributes that do all the Translating the 'wax' geometry Up and Down within the glass enclosure. The subattributes[axis helpers] used were: MP_TR_X[_XAX],MP_TR_Y[_XAY],MP_TR_Z[_XAZ].
Enjoy.... 