Yes. Please create a custom flight plan manually, save it, and upload an archive with a folder of this plan in response to my message. On Android devices, the flight plan is saved in a folder with the name you assigned to the plan. I hope it's the same on iOS devices.
I will study the differences and make a version for iOS.
Android saves flight plans here: "/sdcard/FreeFlight 6/flightPlan/..."
From what I remember about the iOS system unless you have a jail broken phone or tablet you cannot access the file system like we can with Androids. Perhaps things have changed but Apple never wants people fooling around with their file system.