How to add pictures to yearlines?

Dear collectors!

How can I add photos to the yearlines?

You either add an auction or an example that contain pictures and have a specific year line/ version selected.

Thank you!

I wanted to add pictures of few coins from my collection. Is it allowed to add pictures made by NGC, or should I make pictures myself?

I would say take your own. They don't have to be professional but the details of the variant have to be visible.