After starting a new project, for instance to begin onpage analyses, we crawl up to 1.000.000 URLs for your project. For the large majority of websites this is more than enough. For comparison: The used-car-platform mobile.de currently has, with almost 220.000 URLs, a Visibility Index of 318 and lands at a VI-rank of 20.
If your page does happen to be too large for the technically limited crawler scope you can simply create multiple projects with individual directories of the page.