adding HPA to the allowed vertical axes

[andy@xxxxxxxxxxxxxxxxx (Andrew Heaps)]

Hi ferret_users,
                   I have an atmospheric dataset with hPa as the vertical scale 
rather than Pa or mb.  Does anyone know how I can add these units to be 
acceptable to ferret so that it knows what they are?  At the moment I can plot 
the data although it give an initial error of 
                   
 *** NOTE: Units on axis "dp25" are not recognized: hPa
 *** NOTE: They will not be convertible:
                   
                   
When I'm using the Live Active Server software this error causes the software to 
deliver a null image.  If I change the data to have units of mb it plots the 
pictures okay.


			Many Thanks
			    Andy Heaps