Enable INAV not working

I am trying to get INAV logs working to have more accurate position for aerial surveying with my 3dr x8

When I try to enable the INAV logger in the terminal (logs, enable INAV) INAV is not added to my list of logs, (see screenshot)[attachment=0]inav.jpg[/attachment] other logs will enable/disable fine.

Does the 3dr x8 not offer INAV?
How can I enable this?

Thanks very much
Arran

I think that is a problem with the CLI output display and probably something we are not going to fix. Please use the parameter setting screens in Mission planner.

INAV is deprecated, NTUN is used instead.