Feature Request: Allow access to all Groups in a Space with one Tag.

Example: A membership site.

Level 1 has access to Space 1 and all its Groups.

Level 2 has access Space 1 and 2, and all the Groups.

Currently, every time I add a new Group to a Space, each subscriber has to be updated with the new tag to be able to access the Group.

Group Tagging is great for List Segmentation, and that really is great. But it would be nice to be able to Tag an entire Space and allow access to all the Groups within it. Thanks.