Limits to number of pages for topic cluster analytics

Currently, there is a limit to the number of pages that can be added to each cluster under "Marketing > Strategy and planning > SEO". This creates a problem when it comes to topic cluster analyitcs. I was hoping to also use the topic clusters reporting for segmenting data for each of our services. Therefore, creating topic clusters based on URLs containing e.g. /service1/ rather than adding them manually would be ideal in my opinion - any way we can make this happen?

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