I’m not completely sure I understand your setup, but containers in an application share a focusManager. FocusEnabled is not intended to be used to control where focus goes, it is primarily used to shut off focusability on inner controls composited into larger controls, like the TextInput in ComboBox.
There is a defaultButton property on FocusManager and Container that can be used to control what the Enter key does.
I have three groups- mainGroup,contentGroup,buttonGroup. Basically buttonGroup contains the button,contentGroup contains some controls like textinputs and so on, and both contentGroup and buttonGroup lies in mainGroup. Problem is I can tab access the contentGroup(outermost group) but can't tab access the buttonGroup components which is basically a button. Now I have different skin classes for each group so I cnt move my button to contentGroup.
Do you have a small test case that exhibits the problem?