Collapsible blocks are sections of content that can be expanded and collapsed,
letting you hide detail until it's needed.
A collapsible block consists of:
An always-visible header, containing:
An arrow that expands or collapses the block when clicked.
A summary line that acts as the block's title. With the
cursor in the summary line, press Ctrl+Enter to expand
or collapse the block.
A drag handle for repositioning the block within the note.
The body, which is hidden while the block is collapsed.
It can hold any kind of content, including nested collapsible blocks. To
break out of a collapsible block and continue typing outside it, press Enter twice
at the end of the block.
You can use the arrow keys to move freely with the cursor between the
summary line, the block's body, and the text around the block.
Inserting a collapsible block
In the formatting bar, go to “Insert” → “Collapsible Block”.