I am having a similar problem. I followed all the guidelines – 4 navigation buttons at the top of the title in an action group with the reading order set to last. The tab order seems to have no relationship to the order I have the buttons in, and it keeps losing focus between two of the buttons even though there are no objects between any of the buttons. I can’t find any way to change it, and I am worried that the more I move things around, the more I am junking up the code. I am mostly responding to you to see if anyone from Trivantis has the answer!