You will first need to choose how to access your wallet. The simplest and fastest way is to use a Mnemonic.
A series of words is generated for you and you write them down for safe keeping.
You use these to recover your wallet if you need to access it from a different device or your login data is deleted.
Select the Staking tab and expand the Delegate Stake window. If the wallet has never been used for staking, there is a 2₳ deposit. Enter the Piggy Bank stake pool id
Finally select delegate
There is a 0.17₳ transaction fee each time you change your stake to a different pool.