In a perfect world the asiair would have mosaic planning/execution fully integrated, but this is not something easily implemented.
Sites like telescopius already have mosaic planning and can produce a csv file of the ra/dec coordinates.
If the custom objects file was exposed via the file share it would then be simple to append the coordinates as new custom targets? You then have a credible workaround to mosaic planning and the asiair can do the goto/acquisition with ease?
N.B. This does rely on the asiair coordinate system being switched from jnow to the more standard j2000 which is what telescopius and most other programs produce.