You can get HiDPI displays with the 3:2 resolution. I have it with my Surface Laptop 2 as I write this.
https://github.com/syscl/Enable-HiDPI-OSX
For a native setting:
https://github.com/xzhih/one-key-hidpi
Choose manual and input your desire resolutions
Great stuff. My tiny little Elan touchpad mimics and apple touchpad very well now. Wish I could install this driver on the windows partition.
@Ddcotrored. You need to right click the kext, show package contents, edit the info.plist