Changing tab indexes and stuff

I know that it’s possible to change tabindex using ActionScript on the components. But I’d really like a design-time way of changing the tabindex.

So I checked the help and found it mentioning the “Accessability” panel. So great I thought. But did it work? Not like I expected. After clicking on a field and pressing tab, it jumps to the next tabindex that I’ve set up. So far, so good. But clicking tab again, expecting the focus to jump to the next component, did not work at all. Suddenly, the focus was stuck. Pressing Shift+Tab to jump back works though. It actually works two times - so that the focus is now on the component with the highest tabindex. But then it won’t go any further in that direction. So if I have 9 components with tabindexes from 1 to 9. I can only jump like this: 1, 2, 1, 9, 1, 2, 1, 9…

Wasn’t the tabindex supposed to work to be able to jump between all the components?