It is not, but this is a frequent request in the Forum, and you may want to visit this Wishlist topic to add your comments and hit the Vote button above the initial post:
I’m not aware of a straightforward (or other) way to do this, but I believe similar things have been requested in the Forum, as well. Personally, I’d really like to be able to see the microSD card in each camera as a storage device accessible on my LAN so that I could just copy files over the air to my PC, or even retrieve them by FTP or some other means.
While I don’t know of a way to do this now, at least not with the Cams’ native firmware, I have physically pulled microSD cards from cameras to retrieve batches of 1-minute video files (because that’s how the cameras write the files to the cards) to my local hard disk so that I can concatenate them into longer videos with FFmpeg on Linux. I realize that’s not what you’re asking here, but it’s the most direct way I currently know of for grabbing and manipulating those files.