your question is wrong!
and the reason for it is because you were brainwashed by the advertisement, and this is exactly why i hate ETH and call it a shitcoin. but lets not get off topic.
ether is not a currency so you shouldn't be treating it as a currency either. when you say "transfer" or "pay" and ... these things belong to a currency. ether is a token, more like a fuel for smart contracts.
so far as i know there is no option in ethereum for sending ether to multiple recipients.
there are ways of working around it and coding it yourself in a way to create multiple transactions and pay tokens of an airdrop to all those receiving it but all the solutions i have seen just automate it but create multiple transactions in the end. google OMG airdrop and see the code.
it is basically this from stackexchange
contract Airdropper is Ownable {
function multisend(address _tokenAddr, address[] dests, uint256[] values)
onlyOwner
returns (uint256) {
uint256 i = 0;
while (i < dests.length) {
ERC20(_tokenAddr).transfer(dests[i], values[i]);
i += 1;
}
return(i);
}
}
for reference:
https://github.com/omisego/airdrop/blob/master/README.md