Yes. Registered users may be attorneys, but they do not have to be. A filing user can file on behalf of attorneys in the firm.
Filing users include court and clerk staff, unrepresented litigants, attorneys, or an agent whom an attorney has expressly designated to make a filing on the attorney's behalf and who has an e-filing system user ID, password, and limited authority to file documents electronically.
Registered user is a person or entity with a user ID and password assigned by the e-filing system or its designee who is authorized to use the system for the electronic filing or service of documents.
For more information on e-filing in Indiana visit http://www.in.gov/judiciary/4313.htm