The newsletter setting change for notification from groups.drupal seems no longer work

Hello Team,

I recently noticed that
You can no longer easily change your email notification types.
For example:
I want to follow a discussion or a certain group, or a city far away,
I'd like to get notification for discussions, but I don't like to get notifications about local events.

There use to an easy way to change the notification settings in "My account" section,
"Notification" tab
"* Edit your notifications settings" area
You can just uncheck the "event" for a certain group,

But now that function seems disappeared.

And replaced by

"Automatically enable notifications for any groups that I join.
Group notifications can also be customized in greater detail if required."

But the Link "customized" does not work for me,
I tried Firefox and Google Chrone.

also you can
"Content type in group
Subscribe to specific content within a group."

add it one by one, but still can not view a list of content type you already subscribed
Can we add that list view? and make it can select multiple groups at a time?

Who should we communicate with to get this done?
I know how to do it but don't know who's responsible for this and have the admin permission.

Any suggestions?
Thanks.
Sincerely,
Xiao