u 12.24. How do I enter characters that are not present in the keyboard?
digraphs to enter characters that are not present in the keyboard. You can use the “:digraphs” command to display all the currently defined digraphs. You can add a new digraph to the list using the “:digraphs” command. For more information, read :help digraphs :help ‘digraphs’ :help 24.9 12.25. Is there a command to remove any or all digraphs? No. The digraphs table is defined at compile time. You can only add new ones. Adding a command to remove digraphs is on the todo list. 12.26. In insert mode, when I press the backspace key, it erases only the characters entered in this instance of insert mode.