As the feature requests are closed, I am posting this here to see if it gathers any interest.
As I am working with multiple computers, the PAC configuration gets out of sync after some time. It would be great if we could import and export configuration items (like one whole tree) in order to create some scripting facility to sync parts of our configuration.
David Torrejón Vaquerizas
In fact, the whole configuration is under $HOME/.config/pac
So, there is no real need to make a CLI export function (unless you only want to export "part" of the whole tree).