gmod, player model change, menu access, character selection, customization, avatar, video game setting, in-game options, model swap, skin selection, gaming environment, interactive interface, user control, 3D model, virtual representation, personalization, gaming experience enhancement, seamless transition, diverse character library, player expression, multiplayer compatibility, sandbox game, Garry's Mod, dynamic lighting, real-time rendering, physics-based gameplay, user-generated content, community-driven models, Steam Workshop integration, avatar customization menu, easy navigation, quick model change, character variety, immersive gaming atmosphere.