Layer States Files (.las): need to include "description" column or tag layers

When I export an .las file, I loose the contents from the description column. Is there a way to retain this information? I periodically update a drawing prepared by a different department that includes up to +500 layers. I would like to include descriptive information as part of the layer state that includes directions how to change/modify individual layers. Can this information/tags be saved directly in the .las file? Is there a different method to do this, short of preparing a separate spreadsheet?

Thanks-