Select to buy products versioned from different categories

Hi guys,

I would like to get some help and guidance with a site we are building on Opencart. I searched but could not find anything similar so far.

What I want to achieve is to be able to provide to customers option to chose product version while shopping, i. e. I offer software for W8, iOS, Android and these versions are listed to the product's page. Customer can choose which one to select and buy. Normally I have each product version as a different item in my database with unique ID. Products have usually same title.

I want customers looking for any type of platform to come upon product page and be able to select and buy the other versions too.

Please advise of best way to achieve this.

Thanks in advance for your assistance.
My opencart version is 1.5.5.1

Has anyone any idea of how to solve this task?

I would also answer any reasonable offers for support.

Thanks.