You can send/receive/store SNGLS in mywtherewallet but you'll need to buy them from Mist or the S-DTV Lightwallet first.
You can't buy them with MyEthereWallet?! why not? dont we just need to send a transaction to the smart contract address that then sends us the tokens? thank you
Myetherwallet is based on the same format as Mist but not the same functionality. This is why you can store/send/receive SNGLS in myetherwallet but not buy them from myetherwallet. Best to use Mist to buy, or to buy with the SingularDTV Lightwallet, then send your SNGLS tokens to myetherwallet if you wish to store them there.