Octarine
Editing and Formatting

Collapsible Headings

Collapse and expand sections to navigate long notes

Long notes with multiple sections can be easier to navigate when you can collapse content under headings. Octarine lets you fold sections away to focus on what matters.

How to Collapse Headings

Click the collapse icon (arrow) that appears next to any heading to hide or show the content beneath it:

  • Collapse — Click the down arrow (▼) to hide all content under that heading
  • Expand — Click the right arrow (▶) to reveal the content again
  • The collapsed state is saved with the note and persists across sessions

This works with all heading levels (H1 through H6). When you collapse a heading, everything beneath it—including subheadings—gets hidden until you expand it again.

Hierarchical Collapsing

Collapsing follows the heading hierarchy, so when you collapse a higher-level heading, all lower-level headings beneath it are also hidden:

  • If you collapse an H1, all H2-H6 headings under it will be collapsed until the next H1
  • If you collapse an H2, all H3-H6 headings under it will be collapsed until the next H1 or H2
  • If you collapse an H3, all H4-H6 headings under it will be collapsed until the next H1, H2, or H3

This makes it easy to hide entire sections and subsections at once.

Keyboard Shortcuts

For faster navigation without using the mouse:

  • Option/Alt + Cmd/Ctrl + [ — Collapse the current heading section
  • Option/Alt + Cmd/Ctrl + ] — Expand the current heading section

When to Use This

Collapsible headings are particularly useful when:

  • Working with long documents that contain many sections
  • Focusing on one part of a note while editing
  • Getting an overview of a note's structure without scrolling
  • Presenting or reviewing documents section by section
  • Temporarily hiding reference material while writing

Even when sections are collapsed, you can still:

  • Use the Outline Navigation command to jump to any heading
  • Search for text within collapsed sections—Octarine will expand them automatically when showing results
  • View the full structure in the Meta Sidebar outline tab