How do I create notes with multiple leader lines?
This is one of those functionalities in SolidWorks that is hiding in plain sight. There are no pull-down menus or dialog check-boxes to do this, because it uses the Windows Control-drag method.
First, click on the note to select it. When it highlights, you will see a square, green drag-handle at the end of the leader arrow. Place your cursor directly over this drag handle, hold down the Ctrl key, and drag-and-drop a copy of the leader to a new location. Repeat if you want more than two leaders.