什么是“使用特质体”设置？

Recently I've started using PHP (worked for MS shops since graduating, and that was mostly what I used in college too). To help with this, I'm using Netbeans and am in the process of configuring it so that it's more similar to Visual Studio.

Under Options -> Editor -> Formatting, I've found this setting highlighted in the red box:

Any setting I pick for that value makes no difference in the sample file on the right. I copied the text from when I use the "Same Line" value and did a diff on it against the text when using "New Line" and they're identical.

So, what is this setting?

In the example to the right of the options, I thought this would impact the (new Example())->alignParamsExample(... and push anything after the -> onto a New Line, but that's not the case.

I've also read the documentation about traits but I'm still unclear exactly as to what the "trait body" would be. I typed out the code they provided in "Example #2 Precedence Order Example" but noticed no behavioral difference in the IDE.

I've tagged this question with both Netbeans and php tags; if I select other languages this option isn't present (but I only have HTML, JSON, Javascript, and PHP to chose from) so I wasn't sure if this is a "PHP thing" or a "Netbeans thing." If it's explicitly one or the other, let me know and I'll remove the tag.

I think this is about that block in class:

class ExampleClass 
{
    /** Start of Use Trait Body **/
    use TraitOne;
    use TraitTwo;
    use TraitThree;
    /** End of Use Trait Body **/
}