Feature Request – login cookie duration

Hi,

I absolutely love this plugin and have a request for a small addition.
I have seen a couple of other plugins that let you alter the cookie duration that is set by WP by default for the login duration – that is the time period before WP annoyingly logs you out and forces you to log back in.
Could you add a setting to let us adjust the duration of that login cookie before forced to login again?
Thanks,
Dale.