Hi @Lucian_Dinu,
You are welcome. I have just created a feature requested as you suggested: Add a presets cleaner to only ship used presets - Feature Requests / Website Builder Request - Sitejet Community
Anyone who is interested in this feature, please upvote it.
Thank you for the SEO related features requests links. I have already upvoted one of them. I upvote the second right away, which is good for semantic HTML.