How to use ethereum-package to run a PBS private chain with multi-builders?

[yTigerl]

I started my own private Ethereum network by using the ethereum-package with command kurtosis run --enclave my-testnet github.com/ethpandaops/ethereum-package --args�file mev.yaml, where mev_type: flashbots. However, it can only run a private chain with one relay and one builder. How can I run a PBS private chain with multi-builders? Or, How can I configure the appropriate parameters to add a builder with the kurtosis service add my-enclave reth-builder command?