See /build/contracts/Multiplexer.json
for deployment details.
You must pass an array of addresses and an array of values to send to those addresses (by index)
function sendEth(address[] _to, uint256[] _value) payable returns (bool _success)
First you must approve
the multiplexer contract address with enough tokens to process your request
function sendErc20(address _tokenAddress, address[] _to, uint256[] _value) returns (bool _success)