To access the active GQ/GQ pool, visit https://dapp.outerringmmo.com/defi/pools. You can identify the active pool by looking for an indicator that shows the remaining block numbers (time) in green.
Use the "Enable" button and accept the spending limit for GQ clicking on "Approve".
By performing the previous step, the enable button will have been replaced by "Deposit".
Click on it, and a new screen will be displayed where you can enter the amount you want to stake. To finish, you will only have to click on "Deposit" and sign the transaction.
