Chiung-Yi Tseng developed a flexible dataset evaluation start offset feature for the EvolvingLMMs-Lab/lmms-eval repository, enabling users to begin evaluation from any specified dataset index. This addition was implemented using Python scripting and leveraged the argparse library to introduce a new command line interface option, --offset, without disrupting existing workflows. The approach preserved backward compatibility and minimized risk by integrating seamlessly with the current evaluation pipeline. By allowing targeted benchmarking and reproducible experiment sweeps, the feature improved data processing efficiency. The work demonstrated a focused, low-risk engineering effort, delivering clear business value within a short development period and without introducing bugs.