Ctrl+Click: Ctrl+click: View file associated with the component (e.g. to view a picture in the default viewer). In HTML components, Ctrl+click works like in Internet Explorer (e.g. select paragraph or word, follow hyperlink, etc.)
F8: Not used consistently. It may show up in test, debug, or release versions in various contexts
F9: View the file associated with the component. For example, if you use MS Office, F9 on rich text components will start editing your texts in MS Word, and F9 on HTML components will use your default browser to view your HTML texts (see also: Ctrl+F9 for editing files)
Ctrl+F8: Download remote images referred to in an HTML component
Ctrl+F9: Edit the file associated with the component. For example, Ctrl+F9 on image components will start editing your images in the default picture editor
Ctrl+F10: Play again (e.g. to repeat a sound when learning pronunciation)