After providing liquidity users can register their LP tokens to an Action. Mero Actions require user parameterization. Meaning, users must decide how much of their Mero liquidity to allocate per each Action, as well as Action specific parameters.
Creating an Action requires depositing ETH into to the gas bank. The gas bank stores ETH to pay for gas fees incurred by Actions. When registering Actions users top-up their gas bank. Any unused ETH is automatically refunded to a user's wallet.