Chrome, Firefox and Safari keep Ctrl/⌘ with N, T and W for their own
windows and tabs whatever a page asks, so on the web New Page is
Ctrl+Alt+N (OneNote 2010's other New Page chord) and New Section
Ctrl+Alt+T, ⌘⌥ on a Mac, in the menus, the palette and Keyboard
options. The desktop keeps Ctrl+N and Ctrl+T. A Mac reports ⌘⌥ with a
letter as the dead key Option makes, so the glue names it by its key.

Assisted-by: claude-opus-5.5