How to make the plugin work

Probably I am doing something stupid.
I was using much detailed and actually high price plugin but when I saw your demo, I said to myself “this is exactly what I want”.
But I still can not make any option which I created (colors or sizes) to display on product page.
You don’t have any tutorial too.
I changed product type from simple item to variation product, but sill no result!
Btw why you don’t create a tutorial for your plugins?