Thanks for the info. I will see if I can get a demo version and try it.
This program is not going to replace the aviation GPS in the aircraft. That one is used for navigation. The program I am looking for is mainly for powerline and pipeline patrols. Pipelines are underground and are hard to follow so if I could download the known GPS position from a .CSV file, I could follow that track on the laptop. That can't be done on an aviation GPS because it would take days or more to enter them all in.
On a powerline patrol we are flying at about 60MPH, following a line, and when we pass a structure (large metal power pole) we have to store its GPS position then download them later to the power company. We pass one structure about every 10 seconds and we're also looking for damage. There is not much time to right click, select save, type in a label, and look closely for damage.
That brings up another question:
Laptop GPS receiver for use in helicopter
Thanks for your help.