Hi Rueben,
Which version of LiPlan are you using? IOS or Android?
If it is the latest Android version (GreenValley App to be installed on the DJI M300 controller), according to the manual, it should support importing KML files. If you would like to get the user manual, please kindly contact
alvi...@greenvalleyintl.com
If you are still using the IOS version, sorry we may not be able to provide any support as that was released many years ago and discontinued already.
Best,
Alvin Qiu
GVI Support Team