On your users_Login.php page, find the line of code that reads like this:
"successRedirect" => "users_Profile.php",
That is the successful login redirect page. Change the users_Profile.php to the page you want the user to be redirected to after logging in. Note, this is a relative link to the page you want to forward to.
Yes, it'd be a good idea to allow the users to logout when they're on the restricted pages.