Visiting the Logpush - Zone-scoped datasets page gives 404

I want to track custom headers with Logpush, so I followed https://developers.cloudflare.com/logs/reference/custom-fields/#enable-custom-fields-via-dashboard. However, when I go to the aforementioned page, I could not find ‘Custom fields.’ So, I clicked on the ‘Manager’ button for ‘Logpush - Zone-scoped datasets,’ but it gives me a 404 error as shown below.

Question:

  1. I want to track which version of the mobile app is calling my Cloudflare Workers endpoint.
  2. Is it possible to do it without LogPush? Directly through the Cloudflare dashboard?

Note: At present, our subscription is for the Business plan.