Hi, couldn't find the answer anywhere so I'm making a new thread for it, sorry if I missed it.

I'm making a site with Web Presence Builder and I'm a bit confused about something. I wanted to add music to one of my pages, and since I couldn't find any module for it I manually edited the HTML in the File Manager. When previewing the page, everything is fine but it's not updating on the site itself and when I run Web Presence Builder it overwrites and reverts the HTML to an old version. Is there any way to force Web Presence Builder to adopt the HTML in the File Manager?