During December 2024, Daniel Samitz enhanced the AliceO2Group/O2DPG repository by expanding physics simulation coverage to include psi(2S) and Upsilon particles. He updated both the decaytable_LMee.dat configuration and the GeneratorEMCocktailV2.C event generator, integrating new decay data and ensuring these heavy quarkonium channels are accurately represented in simulation workflows. Working primarily in C++ and leveraging ROOT, Daniel focused on data-driven configuration and collaborative, version-controlled development. His contributions improved the realism and fidelity of particle physics simulations, supporting more precise downstream analyses. The work demonstrated depth in event generation and simulation, with ongoing efforts in validation and integration testing.