Hi,
Has anyone found a workaround for this issue?
B4B review team asked me to remove duplicate buttons from the overflow menu.
When I add actions with OnBar placement, they appear on bar only. But once I add one or more actions with InOverflow placement, all OnBar actions suddenly appear in overflow menu as well. 
Changing the order of actions to add InOverflow ones first did not help. OnBar actions still appear in overflow menu, even when added later.
I've found another thread with suggestion to create the actions once and just modify their properties later, but this also doesn't work. I think that the placement can't be changed after adding the action.
Any ideas are welcome.
"B4B review team asked me to remove duplicate buttons from the overflow menu."
This is nonsense if i understand correctly,
Check this link Navigation Single Screen.
Specifically they say
"It's important to note that the action menu is displayed only if you add actions that don't use theActionBarPlacement:
nBar value (or if the action bar is full, as described above). In addition, if an action menu is displayed, the menu contains all of the actions for the Page, including those actions that already appear on the action bar. Consider the following examples that illustrate this behavior"
So testing team wants to change cascade design ? Open a bug on blackberry 
