I found that, for different user looking at the same Technology, there are some that are able to see the Requests column while some other are not.
Is this a Technology related thing or is it based on permissions?
This was always under Apache tecnology' process groups.
With Requests column:
Without requests column:
From my brief analysis, it seems this metric is only collected for a subset of technologies and for the technologies it is collected, the processes must be deeply instrumented.. Processes that have this infographic below are the ones you can see the Request column in the Technology Overview
Example of technology not collecting this metric
Technologies where this metric is collected (that i have seen) - Apache HTTP server, IIS, IBM WAS, Apache Tomcat, Nginx, JBoss, ASP.NET
Hope This Helps