Assembling

The canvas is the document: an ordered list of rows, each a snippet pinned at a revision.

1. Put rows on the canvas (your first document has the insertion point).
2. Reorder with the row's ⋮⋮ grip, or ⌥↑ and ⌥↓ on the focused row.
3. Remove with ✕, or ⌘⌫ on the focused row; a toast offers Undo.

The row menu

A snippet row's ⋯ and right-click render one list: Open in editor, Open in library, Refresh to latest, Increase heading level (+1), Decrease heading level (-1), Duplicate, Remove, plus Reset heading level (H0) while the heading level is raised. Duplicate and Remove act on the row, not the snippet.

The toast's Undo and ⌘Z both undo the last canvas change — an insert, remove, duplicate, heading change, refresh or reorder.

Pinned revisions

A snippet inserted from the library is pinned to its current revision; a template's rows, a Duplicate and a restored row keep the pin they were copied with. A later save of the snippet does not change the row.

When the snippet has a newer revision, the row's seal reads Moved, unless the snippet is flagged wrong (Needs correction) or stored as expired (Review expired). Refresh to latest re-pins the row; while the pin is current it is off, reading Already at the latest revision.

A row whose snippet you can no longer read renders as a red block, Snippet deleted — remove or replace.

The canvas ⋯ carries Save as template (see templates) and a remove-all item carrying the row count, as in Remove all 12 items….