Select object in imported file

Hello guys I have a glb file there is a user panel with third-person character which can walk in hall
the purpose is the character(user) can select its clothes pants and hats mean changing their color
I’m using (PointerLockControls) for walking and see around I don’t have access to pointer when walking
so how can I implement it with selecting color or even select object in fbx or gltf file