1) Make sure this is added to your settings.json file: "apiRestricted": false 2) Open http://localhost:12391/api-documentation/#/Names/updateName 3) Click "Try it out" 4) Remove "txGroupId": 0, as it is not needed. 5) Place 0.001 in place of 0 after "fee": 6) Replace "ownerPublicKey" example with Public Key of Account of Name to Change. You can find it clicking the settings wheel upper right of the UI. 7) Copy Account address 8) Open http://localhost:12391/api-documentation/#/Addresses/getLastReference 9) Click "Try it out" 10) Place Address in address box and Hit Execute 11) Copy code in Response body 12) Place that code in place of example for "reference": 13) Make sure you have atleast 0.001 in Account Wallet (for transaction fee) 14) Replace "my-name" with existing Name to change and replace "my-new-name" with new Name. 15) Once all data is filled and ready, copy refreshed 13 digit timestamp from https://currentmillis.com/ 16) Replace timestamp example with latest timestamp and click Execute immediately. 17) Copy response body code 18) Open http://localhost:12391/api-documentation/#/Transactions/signTransaction and Click "Try it out" 19) Replace example of body code above after "transactionBytes": 20) To get private key open http://localhost:12388/app on Firefox 21) Log in and ignore APIkey request 22) Open Firefox Web Development Tools Firefox menu > Web Developer > Browser Console (Might need to add Chrome/Brave info too) 23) Paste "Base58.encode(reduxStore.getState().app.selectedAddress.seed)" in console and Hit Enter to get private key 24) Copy Private Key and Paste it in place of example on

  http://localhost:12391/api-documentation/#/Transactions/signTransaction and Hit Execute

25) Copy Response body 26) Open http://localhost:12391/api-documentation/#/Transactions/processTransaction and Click "Try it out" 27) Past Responce code in place of "raw transaction base58" and Click Execute. You will get true if accepted.