How to add amazon affiliate link and Image from this amazon product to my wordpress article?

Can you give me a blueprint or video that does exactly this?

I even paid for Lasso, and I was able to publish it on my post, HOWEVER I could only change name, I for some reason couldn’t change description and url (when you type url it automatically fetches image so this is most important part), it’s somehow locked from editing those fields, I tried everything to unlock it, php scripts, plugins etc and nothing worked.

Basically I did it in Lasso but couldn’t make it look nice (literally just couldnt change 2 fields, blueprint was fine)

So I was wondering, does anybody have either step by step to unlock editing these fields somehow, or maybe another way without Lasso to make this happen?