def OnGoToCentre(self, evt: wx.CommandEvent) -> None:
centre = (stageMover.mover.SavedBottom + (
(stageMover.mover.SavedTop - stageMover.mover.SavedBottom) / 2.0))
stageMover.moveZCheckMoverLimits(centre)
def OnGoToBottom(self, evt: wx.CommandEvent) -> None:
stageMover.moveZCheckMoverLimits(stageMover.mover.SavedBottom)