Groups API calls not linked to web interface functionality?
I've been trying to use the newly released feature below from the release notes here - https://software.broadinstitute.org/firecloud/blog?id=9364:
You can now use the FireCloud APIs to create and manage groups of users! Groups can be used to easily manage permissions on workspaces and billing projects. For example, you can maintain a group with all members of your lab and give that entire group access to a workspace. Previously, you would have needed to add each lab member individually. The API command for this feature can be accessed under the "Groups" section on api.firecloud.org. Once you have created a group using the API, you will be able to make use of the group through the web interface in relevant areas such as the workspace sharing dialog.
As the release notes say, that the user would be able to make use of the groups created via API on the web interface using the sharing dialogue feature in workspaces; although the API functionality works in pieces, but I'm not sure how to access these newly created groups from workspaces or billing management to be able to add or remove a group using web interface. I could not find any feature when I navigate to a workspace, and click on the blue sharing link to be able to add a group there. I was also not able to access these groups while being the owner of a billing group as well.
Is there any documentation available related to this API functionality and how different access permissions work with it?