An N-Vote Gate is true when N or more of its inputs are true. The inputs can be conditions, or other gates. With an N-Vote gate, you need to specify the number of inputs that must be true in order for the gate to be true. The following dialog appears when the N-Vote gate option is selected:
The number of required votes can be edited by typing directly into the text box, or by using the arrows to the right of the text box to increment the number of votes up or down. The number of votes must be an integer, so non-integer numbers are automatically truncated. Once the node has been placed, it will display the number of votes required, as shown below: