I'm using rules to create new nodes on 'After saving content of type' event.
To do so I loop through a list of type entity reference
Loop Parameter: List: [node:field-childs] List item: Current list item (list_item)
Inside the loop I Create a new entity,
Create a new entity Parameter: Entity type: Node, Content type: Attendance, Title: [node:field_childs], Author: [node:author] Provides variables: CreateAttendancePage (basic_attendance_created)
Then I save the entity
Save entity Parameter: Entity: [node], Force saving immediately: true
This will title all the new nodes with all the field_childs values available instead of taking them one by one.
I end up with titles like:
First node: Timmy, Jack, Jimmy, Sam, Hannah
Second node: Timmy, Jack, Jimmy, Sam, Hannah etc.
First node: Timmy
Second node: Jack