bear with me-here goes. I have a measure with 3 groups of 16th notes. I want the first 16th note played with 3rd finger, left hand, the second 16 note played with 3rd finger of right hand, and so on. And I need to mention that the first group of 4 16th notes are repeated Bb's, the second group is repeated E's, and the third group is Ab's. Since I want the notes played very staccato, and with the aforementioned fingerings, I would like to notate the 3 groups between two treble clefs, rather than all the notes in the treble clef. So I need to use alternating Bb's between the two staves, but connected to a single line occurring between two treble clefs, so that the performer has no doubt as to how I'd like these 16th notes played. 

I hope that I adequately explained my dilemma. Any help would be appreciated, and I am more than willing to clarify the question if need be.

Thanks-Paul Kolar