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The document screen is divided into three main parts.

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1. Header: where you manage and connect the document

The header is the top area for managing the document.
It’s where you decide how this document is connected and what state it’s in. The header is about the document as an object. What you can do:
  • Open document notes
  • Link tasks
  • Set label and status
  • View backlinks
  • Open the graph
  • Run AI review
  • Export or share a link
  • Split view
Think of the header as:
“Where you decide how to manage this document,
what to connect it to, and
what context it lives in”

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2. Toolbar: your own set of editing tools

The toolbar controls which tools appear in the editor.
You can keep only what you use and arrange it to match your workflow. The toolbar is where you decide how to use the editor tools. What you can do in the toolbar:
  • Turn tools on or off
  • Change their order
  • Hide tools you don’t need
  • Save a layout that fits your style
Examples:
  • Writing-focused → font and formatting
  • Planning-focused → alignment, lists, tables
  • Editing-focused → undo, history, structure tools
The toolbar isn’t for adding features;
it’s for organizing your workflow.

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3. Editor toolbar: tools for shaping the text

The editor toolbar is the actual tool area for entering and editing content.
It holds the main layout and editing features for the document. This is the layout that applies to the document. Examples of what’s there:
  • Font / size / line spacing
  • Alignment (left, center, right, justify)
  • Bold / italic / strikethrough / underline
  • Bullet and numbered lists
  • Hanja conversion
  • Spell check
  • Special characters
  • Find / replace
  • Insert image
  • Insert table (default 3×3)
  • Word / character count
The editor toolbar is for
how you express this sentence right now.
Each part of the document screen has a clear role.
Knowing what is managed where and what is set where
makes work much simpler.
Understanding this layout alone
changes how quickly and accurately you work with documents.
Related: 3.2.5 Editor toolbar customization