Power BI Embedded - Embed a Group of Visuals

We would like to embed a group of visuals in an application instead of a single visual, report or dashboard? Ie configure the API with something similar to the way you would do with a single visual. A group being the item created when you group together visuals on a Power BI page - I noticed that the group is given an ID in the Power BI Project file format.

this would provide efficiencies vs embedding a report, especially where we want to embed specific individual visuals from a page. We'd hope that this would be implemented in a way that would optimise performance.