In what format is your video file ? Can you rename those files and then save them to different directories?
The only other ways I can think of is to either use your camera software to cut it into segments and rename those segments before saving or
Drag the video into PD and cut it into segments- remove the parts you don't want and then Produce the clip to a file. Rename that file as you like.
Rob
PD 14 Ultimate Suite / Win10 Pro x64
1. Gigabyte Brix PRO / i7-4770R Intel Iris Pro 5200 / 16 GB / 1 TB SSD
2. Lenovo X230T / 8GB / Intel HD4000 + ViDock 4 Plus & ASUS Nvidia 660 Ti / Link: https://www.youtube.com/watch?v=ZIZw3GPwKMo&feature=youtu.be