You can load ASE, STL, and VRML formats from LabVIEW.
Convert your G code to one of these formats, or export one of these file types from your CAM package.
Try this topic for contacts/code:
About integrating existing G-code into LabVIEW, unfortunately, LabVIEW does not currently have any way to do this, as there are no toolkits or modules designed for this type of application, but NI has Alliance Partners who specializes in this type of work.Design & Assembly Concepts, Inc. specializes in motion control and does support these types of applications.
Otherwise you can keep trying to comunicate with Gharb (link below):
If our developers know our customers are asking for it, they will be able to appropriately prioritize their development time, so I would suggest you to go to our NI idea Exchange (find link below) to provide feedback on G-code support.