I´ve never seen before this way of writing methods:

 

cp5.addBang("bang"+i)
       .setPosition(40+i*80, 200)
       .setSize(40, 40)
       .setId(i)
       ;

 

I suposse it is not equivalent to:

 

cp5.addBang("bang"+i);
cp5.setPosition(40+i*80, 200);
cp5.setSize(40, 40);
cp5.setId(i);

 

Because there are more semicolons. But setPosition is cp5 method and if I write cp5.setPosition(20,20); Im not telling the element to set the position. setPosition refers to the Bang, so it should be a bang method, but it is not. I dont understand this. For example if later I want to change the bang position, I dont know how to do it.