Clover: a notebook can be renamed from its menu but not from the keyboard.
The palette's commands now list what the context menus of the page shown, its
section, the group holding it, its notebook and the page's text at the caret
do, named with what they act on (Rename Page, Section Color, Move Notebook Up,
Copy Link to Paragraph), disabled where the menu disables them. Both read one
list, so they can't drift apart; a command already doing the same, like New
Page, stands for its action. Move and Section Color open their submenus beside
the palette. A replay test checks each menu item has its command.

Assisted-by: claude-opus-5.5