loading and allocation   EventSystem::getGroup / EventGroup::getGroup / EventGroup::getGroupByIndex allocate the event instance memory (including any DSP effect allocations) for the events in that group only, EVENT_CACHEEVENTS flag is used. This function is not recursive and does NOT traverse into subgroups. FMOD_EventGroup_GetEvent will load wave data for the specified event, but if you specified FMOD_EVENT_INFOONLY in this function, no wave data will be loaded.