Once you've selected a market (see Testnet UI Walkthrough) you can add or remove liquidity from it.
Click on the Add Liquidity button on the LP tab of the page.
Input the amount you want to deposit. You can review the resulting position here before proceeding.
Click on the Add Liquidity button. This will prompt a transaction on your web3 wallet.
Once the transaction is executed on the blockchain, your open position will be listed on the LP tab.
Click on the Remove Liquidity button on your LP position under the LP tab of the page.
Input the amount of liquidity you want to remove.
Once you've checked your inputs and the transaction preview, click on the Remove Liquidity button. This will prompt a transaction on your web3 wallet.
Once the transaction is executed on the blockchain your position will be closed. You can still see its details under the Closed tab.
If you've tried to remove liquidity that was being utilized to back open user positions, you may have started a Delayed Withdrawal process. If there is no unutilized liquidity available to withdraw, the Redeem button will appear disabled:
Once liquidity becomes available, you can complete your delayed withdrawal process:
Find your Queued withdrawal under the LP tab in the page and click on the Redeem button. A form will pop up.
Input the amount you want to complete the withdrawal process for.
Click on the Complete withdrawal button. This will prompt a transaction on your web3 wallet.
Once the transaction is executed on the blockchain you will receive your assets and your withdrawal will be completed.