Add and edit internal wire jumpers which jumper between terminals on a component.
Drag your mouse to select contiguous terminals or use the CTRL button to select noncontiguous terminals.
Try to select as near the terminal as you can since AutoCAD Electrical toolset finds the closest connection terminal to your selected point.
Notice that the selected terminals are highlighted in the list.
Once selected, the terminals that are part of this jumper assignment are highlighted on the terminal list.