GFork

3 Different kinds of Titles and links based on you scroll position on the page:

1. Chapter middle Chapter 2/14 Middle special jump
   DEMO Cursed Reality - Lost_In_The_Muse - 52,374 words, Chapter 2/14 Middle
   
2. Chapter top Chapter 2/14 Start direct chapter link
   
3. Chapter bottom Chapter 2/14 End special #NEXT link, will automatically click the "Next chapter" button when the page opens.

Triggers: Floating button in corner, appears when you scroll back up, used to leave middle bookmarks. Also hooks the Bookmark buttons.
Staying pressed on the corner button highlights the target text (keeps first 10 words).

Update mechanism: replaces it own link or prepends it, preserves other bookmark text. Simply press Bookmark then Update.

Inside works, displays the bookmark above the title in purple. This lets you know if you left a bookmark and quickly jump back to it.

If you accidentally hit the button and got sent down, a "Bookmark: " above the box will send you back up and close the box.

On the "/user/bookmarks" page, display +N words/chapters in: green (caught up, updated), orange (dropped, updated), gray (dropped, no updates).

Porting links to this script is done manually by opening each work to the right chapter, pressing "Edit Bookmark" > "Update" and cleaning up custom text.

Experimental: Any tag containing a case insensitive 'fav' gives it a pink inline, 'watch' gets a green outline.
Unused: Passively scrapes bookmarks from the "/user/bookmarks" page displaying the total at the top, for future use in search.