# Is it possible to add a node to a circuit model in SystemModeler?

I am putting together a basic electrical circuit model in Wolfram System Modeler. While the circuit does not technically need a common node, it makes the circuit easier to explain as branches may be grouped logically.

I am currently trying a 0 ohm resistor as a common node. If there is a way to insert a node on a wire that multiple elements may connect to, I will use that.

I'm not sure what you are asking for, if it's just an electrical circuit you can add a Pin, see Modelica.Electrical.Analog.Interfaces.Pin.
If there are signals of different types (Real, Boolean, Integer, etc) you can use an expandable connector. I'd recommend taking a look at the example BusUsage (Modelica.Blocks.Examples.BusUsage)