AS3 Right Click Button

Hello, I'm new to AS3 and I'm trying to do a right click button but I can't do it. 

I'm trying to create a maze but since we need a drag and drop button and resize button, we decided to make it look like a puzzle and they will drag the puzzle all together. However, I don't know how I will make the resize button because we have 8 objects. Is it possible to put in one button only? or no? Sorry I'm really new here.

Here's my attempt

ddmaze8.addEventListener(MouseEvent.CLICK, incHeight);

function incHeight(event: MouseEvent): void

{

               ddmaze8.height += 5;

               ddmaze8.width += 5;

}

ddmaze8.addEventListener(MouseEvent.RIGHT_CLICK, decHeight);

function decHeight(event: MouseEvent): void

{

               ddmaze8.height -= 5;

               ddmaze8.width -= 5;

}

Thank you so much!