Since Node-RED 1.1.0
In previous versions of Node-RED, the help text for the currently selected node was displayed in the Information sidebar.
Introduced in Node-RED 1.1.0, the Help sidebar provides access to the help content for all nodes in the editor - not just the current selection.
The top section provides a full table of contents, that can be toggled using the button.
Node-RED: Low-code programming for event-driven applications.
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