If external applications are acceptable (for PC only) then you may want to have a look at Sky Dolly which comes with a Location management module that even supports „cold and dark“ starts from anywhere:
For a concrete use case how to define your own helipad start location see here:
Sky Dolly also allows you to exchange „userpoints“ with Little Navmap, via CSV import/export.
Sky Dolly is an „external“ application. For an in-game solution have a look at:
Sky Dolly is a free (open source) flight recorder. Disclaimer: I am the author.