I lost my jaxx backup phrase. I have private keys to two ERC20 tokens (ICN and SALT). I want to use MEW to regain access/link to my tokens on the blockchain. What are the exact steps in MEW to use private key to relink/pair MEW to these tokens. I've looked for an hour at help and googled it. (I'd use JAXX's 'paper wallet transfer' function to do this, but that function is broken/buggy.) I can only find geth or mist instructions, but i want to simply use MEW for this recovery.