Is Energy Saver scriptable?

Where can I find out info on whether Energy Saver control panel
is scriptable?
Or if you know, could you please tell me how to:
change the “separate timing for display sleep” setting.

I was using ‘Energy Saver’ with MacOS 8.6 and found it to not be scriptable.
I was able to accomplish my desire to set startup time changes using the scripting addition ‘Power Manager’ which is available in the Scripting Additions at this site.
I am not sure if this will accomplilsh what you want to do but you can download it and read it’s dictionary. If not search the Scripting Additions for other possibilities.
Good Luck !