I'm not trying to be a smartass, but if you click on the 'i' symbol in the 'action' column of the configuration/sessions page you should see a line or two of text that explains what the setting does.
I find them mostly self explanitory, as I'm sure you will too. Those options that you are unsure of are best left at the default settings.
If you are not happy with this explanation/answer then please be a little more specific with your question. IE, exactly which option(s) need more/better explanation?
Cheers
Rod




