This is a great question. You definitly can add Share Name ID to all the lines on the account. This can be done by signing into your My Verizon Account. Click on the link to start. http://www.verizonwireless.com/support/share-name-id-faqs/
Follow us on Twitter @VZWSupport
If my response answered your question please click the �Correct Answer� button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!!