Is there an example that uses multiple groups within the graph and draw it accordingly. I have multiple groups and I would like to draw the graph in a way that all vertices within each group to be close to each other. I could not achieve this with a problem that has a known solution, so I thought maybe it is not possible, or if it is, someone could help me in how I should try doing it. The test problem that I've chosen is to take all amino acids, organize them into groups according to their properties, and to get to this planar grouping: https://www.researchgate.net/publication/11265315/figure/fig1/AS:28125101875... I would like some general help ideas, but if someone would like to join me in this small project, I can share what I've tried until now. Csongor