System Configuration Editor - undocumented

[SAE140]

For anyone au fait with hardware settings and wanting to customise a ThinkPad, I've just discovered that to edit the system configuration (held in cmos): enter Easy-Setup using F1, then select 'Config', then press Cntrl-D which will bring up a System Configuration Editor.
F1 then brings up a series of help screens, but I strongly recommend not playing with these settings if you don't understand what they mean ....

Q. Are there any other known undocumented tools ?

Colin