How to traverse clefs

[Carl Youngblood]

I'm trying to write an arpeggio on a piano system that begins in the
bass clef and continues in the treble clef with the same beam for the
eight notes.  In other words, there are a series of eighth notes in
the arpeggio.  The ones in the bass clef have note stems going down
from the beam and the ones in the treble clef have note stems going up
from the beam.  Anyone know how to do this?

Thanks,
Carl