Hi Spike -- Thanks for checking on this!
I followed your advice and pieced together the URL as you suggested. This gave me the following URL (of course I used the real team name instead of
<team_name>):
https://microsoft.sharepoint.com/teams/<team_name>/_layouts/15/ManageFeatures.aspx?Scope=Site
When I tried to go there, it displayed the box that states "Sorry, you don't have access to this page." So I typed my reason for needing access and clicked "Request Access." A couple of hours later, someone granted me access, but it was to the root site:
https://microsoft.sharepoint.com/teams/<team_name>/_layouts/15/start.aspx#/
This did not help, because I already have access to it. I still need access to the site collection features page:
https://microsoft.sharepoint.com/teams/<team_name>/_layouts/15/ManageFeatures.aspx?Scope=Site
In email, I requested access specifically to this site, but I'm still waiting for a response about that. I suspect that the SharePoint administrators in this department might not know how to grant access to this special page as opposed to the general, root
page. I hope they can figure out how to do that. ****