Key Bindings
There are two pre-set key maps available: Emacs (default) and Vi.
You can switch between them with the keybindings
built-in command.
keybindings vi
keybindings emacs
Vi Mode Prompt Indicators
In the Vi mode, you can define the displayed indicator for normal and insert modes with the following variables:
$ export VI_NORMAL = "[=] "
$ export VI_INSERT = "[+] "
$ keybindings vi
[+] $