Can we change the Family time-out frequency?

I'm sick to death of logging back into Family after whatever number of minutes. I have to do it over and over again because the site times out after 5 or 10 minutes.

Can we individually change the default amount to something else (like every 30 minutes)?  If not, hey, Norton, how about changing the default.  The current time-out that you've chosen is ridiculously short and annoying.