2. Ctrl+ 1,2,3 ... Function: Switch to the 1,2,3 ... th tab from the left.
3. Ctrl+A function: Select all the contents of the current page.
4. Ctrl+C function: copy the currently selected content.
5. Ctrl+D function: Open the "Add Favorites" panel (add the current page to favorites).
6. Ctrl+E function: Open or close the "Search" sidebar (optional for various search engines).
7. Ctrl+F function: Open the "Search" panel.
8. Ctrl+G function: Open or close the Simple Collection panel.
9. Ctrl+H function: Open the "History" sidebar.
10, Ctrl+K function: close all tabs except current and locked tabs.