Troy Chaplin

Adds a dashboard metabox that allows a user to quickly find and edit specific core or custom blocks across all post types on a site.

Block Finder

Easily find content blocks anywhere on your site.

Garrett Grimm

RichH

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Use this plugin to easily create links to simple popup windows. It supports multiple popup links on posts/pages/widgets and window positioning/centering options.

Simple Popup Plugin

This plugin makes it easy to create a simple, modifiable popup window.

Block Finder vs Simple Popup Plugin