I’m not sure demo-ing shortcuts makes compelling video 
but as some noted it helped and whether there were any notes, see below for more on shortcuts in Outline:
Alter Current Selection
If nothing is selected selected:
Up-Arrow or Down-Arrow will select first outline item
If selection present :
Up-Arrow: Select Previous (Visible) Note
Down-Arrow: Select Next (Visible) Note
N.B. collapsed containers are not expanded
(Using Cmd+Opt with the arrows does the same)
[Fn]+Up-Arrow: scroll one page (screen) up
[Fn]+[Shift]+Up-Arrow: Go to outline Home
Tab: Demote current selection
Tab+[Shift]: Promote current selection
Cmd+Opt+X: Open note as a standalone window
Focus the view
[Cmd]+[Shift]+Down-arrow: Focus / Hoist / ‘Drill down’
[Cmd]+[Shift]+Up-Arrow: Expand view / Un-hoist.
Double-click+Outline Note icon: Focus / Hoist / ‘Drill down’
[Cmd]+R: show original
[Cmd]+[Shift]+R: show original in a new tab (with parent hoisted)
Tab+[Opt]: Toggle focus: $Text → first Displayed Attribute → main view → $Text
Changing the existing selection
[Shift]+Up-Arrow: Extend Outline view selection upwards by one note
[Shift]+Down-Arrow: Extend Outline view selection downwards by one note
[Fn]+Down-Arrow: Outline view, scroll one page (screen) down
[Fn]+[Shift]+Down-Arrow: Outline view, go to End
[Cmd]+A: select all
[Cmd]+[Opt]+[Ctrl]+A: deselect all
With focus in the $Text area of the text pane:
[Cmd]+[Opt]+[Up-Arrow]: move selection up one
[Cmd]+[Opt]+[Down-Arrow]: move selection down one
Expand/contract outline
Left-arrow. If selection is an expanded container, collapse container (if selection is a child, select the parent)
Right-arrow. If selection is a collapsed container, expand container (if selection is a leaf, collapse parent and select it)
[Cmd]+[Opt]+Left-Arrow: Collapse container
[Cmd]+[Opt]+Right-Arrow: Expand container
Outline disclosure triangle+[click]+[Cmd]: Show/hide children of this and all sibling containers after this in $OutlineOrder (toggle)
Outline disclosure triangle+[click]+[Cmd]+[Opt]: Expand/Collapse All Containers (toggle)
Outline disclosure triangle+[click]+[Opt]: Expand All Descendants (toggle)
Move selected item(s)
[Cmd]+Up-Arrow: moves selected item(s) one place up, i.e. lower in outline order, within current container only
[Cmd]+Down-Arrow: moves selected item(s) one place down, i.e. higher in outline order, within current container only
Tab: demote as child of previous sibling
[Shift]+Tab: promote as next sibling of parent
Deletions
Delete Backwards: Delete current item and select previous item
Delete Forwards (Fn + Back Delete): Delete current item and select next item
(works in container scope, if previous/next would be out-of-container, the next/previous is selected instead.
Creating notes
Return: Create a note as next sibling
[Ctrl]+Return: Create note as previous sibling
[Shift]+Return: Create child note as last sibling
[Opt]+[Shift]+Return: Create child note as first sibling
Double-click (view, no note selected): Create note at end of root of currently displayed outline
[Cmd]+[Shift]+A: create agent
[Cmd]+D: duplicate the selection, NB auto-increment
[Option]+click in view pane: duplicate note, as younger sibling
[Cmd]+L: alias the selection
[Opt]+[Shift]+click in view pane: make alias of note, as younger sibling
Window Input focus
[Opt]+Tab: Toggle focus: $Text → first Displayed Attribute → main view → $Text
Spacebar: move focus to $Text area
Edit a title/rename
Any of:
Double-click $Name text
Click-hold (long click) on $Name text
[Cmd]+[Shift]+Return
When in $Name edit mode:
[Ctrl]+Return: insets a line break in $Name
[Opt]+Return: insets a line break in $Name
Edit a name style
[Cmd]+B: bold
[Cmd]+I: italic (remember aliases use italicised titles!)
[Cmd]+[Shift]± (minus): strike-though
Magnify view
Cmd+Plus: Magnify (zoom in)
Cmd± (minus): Shrink (zoom out)
Pane width allocation
Cmd+4: Text pane only
Cmd+5: Text and View (even split)
Cmd+6: view pane only
Miscellaneous
[Cmd]+F: Open Find bar (use ‘Done’ button to close)
[Cmd]+[Opt]+[F] open filter
[Cmd]+[Shift]+E: Explode current note
[Cmd]+[Opt]+I: Get info for current item
[Cmd]+[Opt]+L: Browse links (opens over text pane)
[Cmd]+[Shift]+C: Copy view as image (to clipboard)
[Cmd]+1: show Inspector
[Cmd]+3: show Quickstamp
[Cmd]+Return: Navigate (follow first listed basic link)
[Cmd]+ ’ (apostrophe): Go back (reverse Navigate)
In in doubt the most comprehensive list is the Reverse Look-up Map listed in the quicklinks top and bottom of every aTbRef page.
Not all notes work in every view. Many Apple text-edit shortcuts like [Cmd]+← moves the text edit cursor to the start of the line/paragraph.
Shortcut not working? It may be being used by another app. Apps register their shortcuts on starting. If two apps map a feature to the same output, the app first to be opened ‘owns’ the shortcut for the rest of its session.
