Display it as a tree (as it shown in the Outliner) <img width="311" alt="image" src="https://user-images.githubusercontent.com/5264687/167627681-72984717-8fc4-4d42-aa32-4ee49a1b8710.png"> Also, consider: - activating bones while selecting them in the tree-list - filtering/showing linked bones only
Display it as a tree (as it shown in the Outliner)

Also, consider: