Displaying the system uptime as of the last checkin would be handy too. I hate it when people say "Yes I restarted it" and it turns out, that's all they needed to do.
It can be added, but have you looked into custom inventory? You can pull anything that's not included already in the standard inventory scan. You would basically just create a new script module and add the output to the custom inventory.
@theopenem_admin I think I've not found the documentation I need. Every time I turn around I find out there's more I can do. I just have to learn the language.