Hello, you can create nodes by first going to File > Options then enabling "Insert a node into existing connections":
When this option is selected, if you try to create a connection from one electrical element to another off of a port that already has a connection, a node will be added and a second connection will appear. However I would generally recommend using the "Fork 1xN" element instead of a node to split an electrical signal. This will do the same thing as the node and it makes it a little more clear how the ports are connected in my opinion.
You are navigating away from the AIS Discovery experience