Group functions within class

I have a class where I have similar functions that are related to different endpoints

class MyClass {

    public function case1_changeOrder() {

    }

    public function case1_changeLimit() {

    }

    public function case2_changeOrder() {

    }

    public function case2_changeLimit() {

    }


}

Is it possible to group those functions somehow so I can get rid of the prefix and do something like

$mc = new MyClass();
$mc->case1->changeOrder();
$mc->case2->changeOrder();

instead of

$mc = new MyClass();
$mc->case1_changeOrder();
$mc->case2_changeOrder();