Where is the disable main page button in admin?

Hey, I remembered it about a month ago and now forgot. Where do you go to disable the main page from showing ? I remember it was in the admin somewhere where you can turn it on or off...

Do not know what you mean specifically - if maintenance this is in config > maintenance

If not until loggedin - config > customer details > Customer Shop Status - View Shop and Prices

You're going to have to ask a more specific question. You can't disable the main page unless you mean taking the whole site down for maintenance; if you are talking about the main page text that shows in the center column, you can wipe that out in Tools > Define Pages Editor > define_main_page.php.