Where’d it go? How do I access the history to restore a previous version?
Hey @user36, welcome to the Wix Studio Community forum - glad to see you here and hope to see you around more.
To answer your question, in the Wix Studio Editor, click the studio logo/icon at the top left, you will then see ‘Site’ and then ‘Site History’ 
Hope this helps, let me know if you have any further questions.