This is a plugin for Obsidian.
It allows you to capture thinking from whatever you're currently looking at into a "Workbench" note. Link and embed pages, headers, and blocks, or copy the current line. You can also use alt+click and cmd/windows+alt+click to add content to the workbench.
A demo of the various ways to add things to your workbench.
Note: you may need to double-click when using the click-based features!
Insert and clear the materials on the workbench:

Control the name of the Workbench note, the line prefix for every item added to the workbench, and what alt+click or cmd/windows+alt+click do in the plugin's Settings.
main.js and manifest.json to your vault VaultFolder/.obsidian/plugins/workbench-obsidian/.