But where previously it was crucial to be able to photograph if youd trained as a photographer so it became more and more of a sideshow with power and influence how press photographers were selected and trained were scribes and had no visual viewpoint nor no knowledge of what it takes to be a good photographer

Can you repeat this sentence, but add in punctuation?
But where previously it was crucial to be able to photograph if you'd trained as a photographer, so it became more and more of a sideshow, with power and influence how press photographers were selected and trained, were scribes and had no visual viewpoint nor no knowledge of what it takes to be a good photographer.