This is interesting, I find his repo is archived GitHub - theSherwood/Mentat: A UI plugin for Tiddlywiki. Mentat: https://thesherwood.github.io/Mentat/ TiddlyWiki: https://tiddlywiki.com/ while it contains valuable Repopup plugin that is a fix for [IDEA] Auto place model of "More" to avoid border · Issue #7929 · Jermolene/TiddlyWiki5 · GitHub
I see this is a version fixed by @Mohammad Volantis Edition: A Repack of Volant for TiddlyWiki 5.2.7
I can take simillar approach, but I will make the whole storyview floating (on the whiteboard layout), instead of each single tiddler (floating on default layout).