Contextual menus

Citekey pages

For citekey pages (starting with @), a full on-page menu will be displayed at the top.

Daily Notes pages

DNPs will show a "XX items added" button if any items were added to Zotero on that day

All other pages

"XX tagged items" = item's tags include 'systems' // "YY abstracts" = item's abstract contains 'systems'

Settings

By default, menus are only shown on pages whose title is longer than 5 characters. This is to keep the functionality focused (e.g, a page titled "art" would cause too many matches, most of which probably of low relevance).
You can also choose to always or never show the menus, by adjusting your settings.