It's one of the new features of PD14 which allows you to blur a face and it will follow the face. I don't remember how to do it, but if you look on Cyberlink's page advertising PD14, it'll show an example and tell you what the feature is called.
Regards,
Dan
Power Director 21-Ultimate
v 21.0.3111.0
XPS-8940, Win-10 64-bit,
Intel Core i9-10900 processor
(10 core, 20M Cache),
32GB DDR4 RAM, 2TB M.2 PCIe NVME SSD, 2TB 7200 RPM SATA HDD,
NVIDIA GeForce RTX 2060 SUPER 8GB GDDR6