This image shows the restproxy1 node's configuration information. This screen contains three columns: Channel, Chaincode, and Endorsing Peers. 

The Channel column contains "default," the Chaincode column contains "MyTestChaincode," and the Endorsing Peers column contains "peer0-1." These are the values that you specified when you completed the Deploy Chaincode (Advanced) - Step 3 dialog.

To the right of the Endorsing Peers column are two side-by-side blue buttons: on the left is a minus button and on the right is a plus button. Click the minus button to remove the REST proxy's chaincode configuration, and click the plus button to add another chaincode configuration to the node.