+1 to this, I use little navmap to create my flight plans inside the world as an XBOX pilot because the world map is pretty bad at creating a route (it skips airways instead of following them or it doesn’t include waypoints that it does in this application )
In addition to creating the route on the plane itself, if the route is very long, you can lose 30-40min picking the route
I have 4 laptops (Dell & Acer), all relatively new, i7, with ssds and great storage and speeds… for day to day business use, but none are gaming laptops and none of them have graphics cards capable of handling MSFS - just get message that they don’t meet minimum requirements… I guess that is why we are asking for another way to save & load Little NavMap flight plans
This thread is nearly 2 years old so I’m guessing nothing became of it. 
Indeed. That’s my take on it as well - although it’s been flagged as “solved”. How cool is this! 