Colloquy plug-in enables personalized command aliases creation.
Installing the plug-in is easy and quick. Unzip the downloaded file, move it to ~/Library/Application Support/Colloquy/PlugIns/, and create the folder if it doesn't exist. If it's the first time installing the plug-in, you should go to Colloquy and type /reload plugins. If you're updating the plug-in or if the script fails to load, you'll need to re-launch Colloquy.
Overall, Custom Aliases is an excellent plug-in that streamlines the command alias creation process with its user-friendly interface. The installation process is relatively simple, and the plug-in is compatible with most versions of Colloquy.