>>311419356
Does it have eyebones? Simply create eyetracking in the CATS plugin. If it doesn't have eyebones you will have to create them yourself and weight the entire iris part of your eyes (I assume it's an anime model) to the new bones, then find the pivot point in your head so that they don't move into the eyewhite. The 4 shapekeys at the top of your list are reserved for eyetracking and need a very specific naming convention, you also can not use an upper chest bone if you want eyetracking to work.

Once all that is done, simply reimport into Unity and assign the left and right eye in the rig setup.