Tap "Reset" to add Wifi Toggle... I was unable to do the method using SQLite Editor (I'm on Android 4.3, rooted). The program would not let me access/edit the system.db. I discovered, however, that tapping "Reset" under Settings --> Display --> Notification Panel added the Wifi toggle. I was forced to do a factory reset previously after I rooted while on Android 4.3. I don't know if this has any correlation but I still did not have the wifi toggle option after the factory reset. Clicking the reset button fixed this for me. Simple fix and easy. I was able to get a refund on the SQLite Editor app thankfully. I will have to see if there is another way to add the Wifi Hotspot toggle.