Hi!
If I recall correctly individuals if fastStructure plots are drawn in the same order as they were provided in your input file. You can use that information to identify each individual.
If you need individual names to show up in the plot you need to either edit the `distruct.py` file to plot those for you or use an alternative software for plotting.
I'd recommend using
Structure_threader for that, which can plot your individuals' names or designated population names, and has an HTML plot for easy data exploration.
Give it a try, and if you ran into any trouble let me know and I'll try to guide you.
Best,
Francisco
PS - Full disclaimer: I'm the author of Structure_threader.