Flying DJI Phantom 4. iOS (iPad Air)
Plotted a rather lengthy mission at low altitude (98ft; required 2 batteries). Mission reached about 70% complete. Battery reached 18% and P4 did what it's supposed to - fly directly home and land (sweet). While battery was still on, I pulled it out and replaced it with a fresh battery. Turned the P4 back on and mission grid on my iPad reverted to the original start of the mission. No option to resume mission where I left off.
How do I resume mission where I left off after battery change?