Depending on your court location's configuration, the Filings section may include the "Filing on Behalf of" dropdown menu at the bottom of the filing details area.
This is a dropdown menu where you can select the party (or parties) you are filing for. If you are an Individual or Pro Se filer, you must select yourself in this menu. If you are an attorney or firm user, you should select the party you are filing for.
This may be an optional or required field, depending on the court location's configuration.