A learning objective detail (or LO Detail) is a space where you can write down any extra details about the learning objective (related vocabulary, related skills, subskills, assessment notes, etc).
If an LO contains an LO detail, there will be a gray dot next to the LO. Click on it to expand the Learning Objective Detail panel.
Here is an example of vocabulary details related to the learning objective called "Write using language of linear functions".
Here are some examples of related skills connected to the learning objective called "Graph a linear equation". From this panel, you can reorder the details by dragging and dropping.
Want to know how to add an LO detail to your learning objective? Check out this article: How do I add an LO detail?