Notes after seeing post:
The MDF spoil board is aligned with dowels, needs to be removed, exposing the slot in the main table. The vacuum table is set on top of the spoil board, roughly in its front to back location.
The OneFinity is used to drill the dowels in every spoil board, vacuum table so the new panel drops down onto the dowels. Any machining is then done with the OneFinity, assuring accuracy.