https://albar965.github.io/ this is the link to the download and it's free and worth looking into I have been using it for a couple of weeks and gave up on Plan-G and FS Commander .
It will build a flight plan and you can add or remove the waypoints save it and load it into your FSC or GPS Takes a bit of learning but I find it great ..
Just something for you to look at
If you need some help with it I have written a couple of tutorials and can email them if you want on how to get going with this Connects automatically nothing else to install at all makes you flight plan for VFR and IFR
Burt