Inserting Lyrics into Simple Piano Arrangements

I write simple piano arrangements and would like to be able to keep the lyrics for the songs in the center of the grand staff when the voicing switches from treble to bass clef. (A lot of these arrangements have melodies that are centered around middle C.) When I try to put in lyrics for the bass clef notes, they are automatcially placed below the notes. When I use the layout tool to move them above the notes, the grand staff gets streched out vertically and the lyrics for the treble clef staff are higher than the lyrics for the bass clef staff. Can you make an option for keeping all of the lyrics aligned in the center of the grand staff?