How to set iphone filtering SMS not to be displayed?

How to set the filtering of Apple's ios8.3 information conversation list? After the mobile phone is upgraded to IOS8.3, a filtered list will appear here for the SMS function. How to adjust this list?

Apple iPhone6 SMS dialogue filtering function setting steps

Open Settings-Select Information

In the information settings, find the conversation list filter and slide it. (It is off by default)

Finally, when the mobile phone enters the information view, you can see that the information has been filtered and you can report spam messages directly.