The easiest way is using the DGNStyler transformer for MicroStation and DWGStyler for AutoCAD.

It has a lot of options to set pre-defined format attributes for different types of features.

OK! What you have to add is a DGNStyler and that allows you to format your output.

Thanks erik_jan. That is a big help. I found the dgnstyler but knowing there is a dwgstyler as well is a life saver. That does everything I need. Hopefully I can get the cells to work with my data. Thanks again!