Raspberry Pi Audio File Read blocks in Simulink for multiple audio files

I am using multiple Raspberry Pi Audio File Read blocks in Simulink for multiple audio files. My issue is, how can I individually play/select each audio file, programmatically?

I thought about creating function blocks and calling them, this does not work. I thought about running the files infinitely and selecting them, this somewhat works, but the audio can begin wherever that specific file is at the time of selection.