Boards and nested folders

A rail on the left.

• Create: the New board field at the bottom, then Enter or +. The new board is selected immediately, and the canvas goes empty for a moment, which is expected.
• Rename: double-click the name.
• Emoji and colour: click the board's icon for an emoji field (up to 4 characters) and six colour swatches.
• Reorder: drag rows up and down.
• Nest: drop one board onto another and it moves inside. The parent expands automatically. Cycles are prevented; depth is unlimited.
• Un-nest: while dragging a nested board, an ↑ Move to top level zone appears.
• Expand/collapse: the ▾/▸ caret. Remembered.
• A count next to each name.
• Delete: ×, confirming "Delete this board and all its references?". If the board is published and the link cannot be taken down, the delete is refused rather than leaving an orphaned live link.
• The rail collapses with « and can be dragged wider. Both are remembered.

The app reopens on the board you had open last.

Something here wrong, or something missing? Tell us — the manual is corrected against the app, not the other way round.