create a dgn eg mycell.dgn with your seed file then in explorer rename mycell.dgn to mycell.cell
and you will now have a empty cell library call mycell
now you use the model copy model etc to make additional cell within the cell library or use the traditional old school pre v8 method of draw, add origin and fence > create cell etc...
i would like to assist the engineer with the cell building problem, I can add a number of cell with quite eas, but I do even know how to answer questions ? some help would be good............................ Sorry to the fellow.
Mulli (Civil is who I am trying to contact. Perhasps you could call me out a Lucite? Contact John Day and he will put you on to me Richard the drafter/