This site is using CircuitLab. In some SPICE programs it is possible to simulate CM choke. For example:
Mutual Inductance is designated in a SPICE netlist by beginning the first word (label) of a new line with the letter "K". It is unique among the basic circuit elements in LTspice in that a schematic symbol is not used to represented it.
Is there a way to achieve this by using CircuitLab?