I have stated to work again on Flex after 2 year and things have changed a lot from Flex 3 to Flex 4.6.1. I am putting this video around to just demonstrate the various Navigators in Flex 4.6. All exist in prior versions of Flex.
I have created a small project and sharing for reference. I personally like LinkBar as it is elegant and performance wise better than others.
Feel free to comment or for any questions or clarifications.