You need a module for opencart

You need to make or modify the module of the online store opencart.
The bottom line: if there are several similar products that differ for example in power, then these goods should be displayed in a table form and opposite each of its price and button to buy.
I mean. The ability to combine goods into groups and display as a group title, and when you look at the group in detail, let a table with all options and prices appear.
There is a similar site, you need to be like them: Texte caché