AdvToolBarPgr caption not keeping center position

When the caption for the TAdvToolBarPager is first  shown it is in the centre of the title bar. When an update is made to it using Caption.WideCaption := 'xyz' the caption move to the leflt side of the title bar and it doesn't appear possible to set it back to the centre. I've looked at the pager and also the pager styler but there is no position property I can see.

Can this be added to the control please.