Tick Boxes with VBA code

Hi

I am looking to add tick boxes into a macro. It needs to work like this. for example a product header eg. R1006-TIM and below that are going to be sub headers for example. GSN and when you click on the button the GSN documentation will open but the problem that i have is that there is different GSN docs for different parts of the same item.

I want to add a list of all the GSN below the sub header with tick boxes and when you tick a certain item and press a command button it needs to open all the items that has been ticked. The document should only open when you press the command button not when you tick the boxes

Thanks

Wesley