Best method to create a flight plan / GPS route for autopilot use/comparison testing?

[theskyisthelimit 48]

Apologies if this one might be obvious to most.. but i'd like to create a flight path (at altitude already) for a bit of benchmarking and comparisons between addons.. aside from using strictly the fsxmark07 saved flight which goes on a predetermined route..

 

What would be the easiest way to create such a route at any given region for any plane.. I have several planes including the legacy, a2a 172 etc, not sure if that might be a deciding factor based on their built in GPS/Autopilot abilities..

 

So i guess i'm wondering if there is a tool that would do this (3rd party) or just the base p3d install would have the ability? (drag and click and save, set altitude and speed parameters, launch flight, load up the plan, hit autopilot and record)?

 

Thanks in advance for any suggestions

 

 

[theskyisthelimit 48]

I'm guessing maybe the easiest is just using plan-g and doing an export on the flight plan should do the trick.