Hello. I've been playing with the Android app in preparation for using it when touring. It's great and I've worked out how to do most things I want thanks to the Help bitty. However there's one thing I can't fathom out. I sometimes want to leave the navigation to check something else on my phone. I just minimise it but when I return the navigation has stopped and I have to load up my route again. Is there a way to get the app to run in the background please so this doesn't happen?