Leave the “Contract Type” field blank. Into the Contract Address field, enter the AURA contract address: 0xCdCFc0f66c522Fd086A1b725ea3c0Eeb9F9e8814
Into the ABI/JSON Interface field, copy the the “Contract ABI” code from the contract: https://etherscan.io/address/0xcdcfc0f66c522fd086a1b725ea3c0eeb9f9e8814#code
Click the “Interact” button to continue.
Select approve from the drop down on the right.
Into the _spender field, enter the IDEX contract address: 0xB705268213D593B8FD88d3FDEFF93AFF5CbDcfAE
Into the _value field, enter the desired amount of tokens to be swapped. Note the amount needs to include the full precision, so 10 AURA would be 10000000000000000000. Make sure there are no spaces before or after the number, or the button will get disabled.