This image shows the serial participant type selected in the Type list. To the right is the Label field. Below that is the Participant List section. In this section is the Build a list of participants using list. Names and expressions is selected in the list. Below this is the Specify attributes using list. Value-based (selected) and Rule-based are the two selections. Below this is the Participant Names table, which includes columns for Identification Type, Data Type, and Value. Add and Delete icons appear in the upper right part of this section.