Enabling the add-on adds a dedicated editor to Blender. Like Shader Nodes or Geometry Nodes, you can create a Node Tree and add nodes using the Shift+A shortcut.
The N-panel of the dedicated editor provides various features.


Five node types are available for Close Bone Picker: "Bone Node" is used to build the virtual hierarchy structure, while the others are used to build Pie Menu-based bone selection features.

Build the virtual hierarchy by connecting Bone Nodes together. Select a bone in the 3D View, then click "Register Bone" within a Bone Node to assign that node to a specific bone. Bone Nodes allow you to freely add or remove parent and child connections, expressing parent-child relationships by linking them.

Once the hierarchy structure is built, select a Bone Node and click the "Send selected structure to Armature" button in the N-panel. The virtual bone hierarchy will be sent to the active Armature, enabling bone navigation along that hierarchy.
See the page below for actual bone selection operations.

As a separate feature, you can also create Pie Menus for bone selection.
