bbPress.org

Topic insert format in specific forum can change using following code.
For example, Forum post=1000,1300

  if( is_single(1000) ){  
        echo 'Baseball rule';     
        return;
   }elseif( is_single(1300) ) {           
        echo 'Football rule';     
        return;
    }

Then how can I customize reply insert format in specific forum?
For example, Forum post=1000,1300

‘reply insert format’ in content-single-topic.php .