Default [Q] Enable Wifi tethering/Hotspot?

Now I am running stock 4.3 I747UCUEMJB on my S3.

The Wifi tethering is disabled. However, this is an important function to me. I am wondering how could I enable it?

I found the following thread but it is for S4, not sure whether it could apply for S3.

http://forum.xda-developers.com/show....php?t=2535141