DimXpert applied datums and feature control frames as requested.  Primary is a face. Secondary is a dowel hole and the tertiary is the centerline of slot flats.  Tertiary was created using width; not the slot icon in the pallet selection.  Slot was also filtered out of the checkbox for all features. The model displays correctly with the C datum showing on the slot width opposite the size and feature control frame.

The Front View (A) scheme is imported (dragged) onto a drawing from the View Pallet. The slot size and position feature control frame are correct. The C datum symbol is incorrectly connected to the opposite side arrow horizontally and it should be vertical to replace the arrow per the Y14.5 standard. Suggestions..?