Grouping question

Hey all, I've noticed that when I'm reading another CJ's articles, they can be grouped with other ones that share a common thread. I'm wondering if there's some way that I can do the same to my own. I now have a collection of articles on the health crisis in NB, two (soon to be more) stories about French language instruction, and can see that I'm beginning to develop certain "pet projects". I'd like to be able to have them grouped for easier access for myself, when writing fresh, and others that wish to read any ongoing developments.