A página inicial do Joe's Own Editor lista essa capacidade:
Multiple interactive keyboard macros. Macros can be assigned to key sequences in joerc file.
A página de manual diz:
You can customize the keyboard layout, the help screens and a number of behavior defaults by copying JOE's initialization file (usually /home/jhallen/etc/joe/joerc) to .joerc in your home directory and then by modifying it. See the section joerc below.
Esta seção joerc diz:
The joerc file
^T options, the help screens and the key-sequence to editor command bindings are all defined in JOE's initialization file. If you make a copy of this file (which normally resides in /home/jhallen/etc/joe/joerc) to $HOME/.joerc, you can customize these setting to your liking. The syntax of the initialization file should be fairly obvious and there are further instruction in it.
Então, basta seguir as instruções acima para construir seu próprio $ HOME / .joerc