When you click in "Sign in" should appear a new pop-up window (if don´t appears nothing please close all the windows and open a fresh new staking dashboard window.
Sign in to your Math Wallet browser extension. You will see a Login Request pop up. Select your wallet and click Accept.
You will be brought back to the Validator page of Staking Dashboard. You will be able to see your address on the top left corner under the Harmony logo which means you are now signed in to your account.
You need to have funds in this account to delegate to our P-OPS validator
Choose P-OPS Validator one1kf42rl6yg2avkjsu34ch2jn8yjs64ycn4n9wdj and click on Delegate button. Enter the desired amount of tokens you would like to delegate and click next.
Confirm the signature request on the Math Wallet pop-up window.
That’s it! You have successfully delegated your tokens to our P-OPS validator. Now you will also be able to collect rewards and also other operations