From the User Monitoring - Groups page, you can achieve the functionalities as follows:
View the list of the groups that current selected user is a member of
View the details of each group
View the member default attributes of each group entry
Edit the group data and group summary data for each group
Switch to user summary page from members list of each group
Delete group individually
As for the details of how to create and retrieve groups through APIs, refer to the group APIs docs here.
The following screen will be seen when browsing to Monitoring | User Monitoring | Groups page, which will display the list of groups that this user is a member of.
Click on the ID column of each entry will open Edit Group pop-up window.
From the opened Edit Group window, you can edit the group Data and Summary Data (click the tabs to switch between them).
You can check the list of group members, invited members, and requested members by clicking the tabs to switch between them. You can delete this group by clicking the Delete button on this pop-up.
Click the eye-view icon of the attributes column of each entry, you can view the member default attributes.
Click the {...} icon at the upper right corner of the group list, you can view and copy the JSON raw data of the list of groups data to the clipboard.