Once you have users join your group by checking the box next to your LPP's name in the "Partners Groups" section of profile creation, as a site administrator you can click the "Edit Users" link (attachment 1). You will be taken to a second page (attachment 2), where you will see the emails of observers who have joined your LPP. From here you can download the individual user's observation data they have reported into the Nature's Notebook system, remove them from the group, add them as a site admit, etc.