1. Install the Xposed Installer from the play store.
2. then install the Xposed installer additional frame work apk. (attached below)
3. Install the Xposed Note3 UPSM apk as normal. Once installed grant SU permission when requested. When you open the app it will prompt you to select 1. older KitKat 2. Newer KitKat. (Select the older KitKat option).
4. Go to the Xposed installer app and activate the Note3 UPSM module.
5. Install the UPSM Application Manager apk as normal. open this up and select the apps you wish to use. Save and reboot.
6. Active UPSM mode using the app icon from the given options. (when using it the first few times you may get a Youtube fc.)
7. You can add the apps you selected using UPSM mgr. by pressing the "+" buttons.
I have been using this mod for a week now and my device is very stable. Grayscale does not work but UPSM and Emergency Mode work perfectly!