You can choose not to show the related groups, and then just add your own list of related groups in a different section of the Group you manage. From Facebook: "Group admins can choose whether to display this section from the "Customize" tab of the Edit Group page.
Sorry you can't control the related groups. Related members are pulled from the most commonly joined groups. So if you have say, 25 people in groupA and 2 in groupB and want to show groupB related to groupA odds are groupB won't show up.
Sorry about that.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.