how to "stick nodes"

[DreamDelerium]

Hello. I am trying to display my data set in fashion similar to the Marvel example provided. My data is a little different, in that I may have 1 or more parent nodes, each with children nodes. The issue I am trying to solve is that when my graph gets displayed, all the nodes are so spread out and overlap one another. I would like to group each parent node (and their associated child nodes) locally. I noticed that on the the various examples pages (Like the Marvel example) there is a button that says "Unstick". When I click that, all the nodes in the graph become unorganized, which looks like how my graph is displayed. So, how do I "Stick" the nodes so they group my one another? I tried using the generated config, but it does not appear to make a difference. I searched through the documentation and did not see any mention of "Sticking" or "Unsticking" Thanks!