I love the app and has been using this quite often. I have a question though, is there a way I can make it to alert me in making a turn at least 1 mile before the turn or maybe at least .5 mile and not just .2 mile which seems the default distance before it alert me to make a turn, sometimes that doesn't give me time to change lanes? I cannot seem to find this option anywhere. And also I noticed when I'm on a route and I check the options, there's an option there called 'block'? What does it do? Any help or suggestions will be greatly appreciated. Thanks.