vim.how

    Insert mode

    From the normal mode you can use these commands to jump into insert mode in different ways. Insert mode is where you enter text similar to a regular text editor. Use the escape key to go back to normal mode.
    i
    Insert before the cursor
    I
    Insert at the beginning of the line
    a
    Insert (append) after the cursor
    A
    Insert (append) at the end of the line
    o
    Insert (open) a new line below the current line
    O
    Insert (open) a new line above the current line