Repositioning the toolpath

I don't even know exactly how to ask this question, so please forgive my ignorance.  I will try to explain.I generated G code to turn a part on my lathe using Fusion 360 and saved it as an NC file.I open the file in Axis and the toolpath is at the extreme positive end of my Z axis, but I want it located at the negative end or maybe in the middle somewhere.When I try to run the program Axis says the toolpath would exceed the limits, which is true.I've attached a screenshot of the Axis screen so you can see the current setup.  I would like the 'left' end of the part to be closer to where the tool currently is (-320 after homing)  Preferably, I would like the left end of the part to be around the -250 mark.  The part is just over 60 MM long.Any help is greatly appreciated.

I did a G54 and there was no change. Do I need to do a G10 L1 X<some value> Z<some value> first?