I can’t remember who had something like that… @michael.lutz or @Dawn_Frier1 are the ones that come to mind for the group work.
I would make the first question a place to list all group members’ names.
Do you want everyone to do all the parts, or do they have specific roles?
If they have specific roles, then the second question would be to identify group roles. The next thing I remember in his/her formative was that each role had their own section in the formative to complete. The group worked together to determine the answers, but they only typed the answers for their section. If you are so inclined, you could provide hyperlinks to other formatives specifcially set up for each role. If you built the full lab, you could clone it for the various roles. Then, you could delete certain questions within each formative, so that role enters only the parts indicated. A step up from this would be to leave a blank problem indicating which role number will type that section.
Whether you choose the individual roles or whether you choose for them to answer only those indicated for their role, those group members who are not required to type the actual answer can type the name of the person in their group who is submitting the answer for the group. (That way you know who to check next.)
While it might be harder, the cloned formatives would keep one student from entering all the answers and it would force the group members to work together.