Hi @emorecas thanks for the question!

In FME workbench you can use the AzimuthCalculator to find angles of features. Of course, this won't work for points as we need to know their position relative to each other, so you'll need to use the LineBuilder to connect your points. If you have many points, this may become more complicated. To tackle this problem in more depth would you be able to post some sample data and your expected output?

Thanks!

Nathan