https://docs.godotengine.org/en/stable/tutorials/plugins/editor/3d_gizmos.html
3D gizmo plugins — Godot Engine (stable) documentation in English
Introduction: 3D gizmo plugins are used by the editor and custom plugins to define the gizmos attached to any kind of Node3D node. This tutorial shows the two...
3d gizmo pluginsgodot enginestabledocumentationenglish