You'll connect the camera to the power bank and then switch to the 3^rd filter (sepia). Then you'll click the shutter button on the front and that's how you can take a 10-second video. To film time-lapse videos, all you need to do is switch to the 4^th filter and do the same thing.

If you drop the shutter speed between 1/15th and 1/4th of a second, then the camera starts to record duplicate frames with the proper "long" motion blur. All you have to do is speed up the footage in your NLE to get a nice filmic "undercrank" look.