which headerAlignment and headerPositions are actually supported? According to the documentation we have left, center, right, bottom, top for the headerAlignment and top, bottom, left, right for the headerPosition.
It seems only top and bottom position and left and right orientation are supported, is that correct?
we test only left/right in headerAlignment and bottom/top in headerPosition. Other values do not work and VDL doc is the only place where other options are mentioned. Please create an issue in JIRA  so that it's implemented/fixed or removed from the docs.