I would like to add a rendering that also has some other rendering added to its own place holder ahead of time. An example is to add a striped rendering and place a 1 column grid rendering in the striped rendering's placeholder. And you can see how I could add an image, some html, etc... And have this all added to a placeholder in one clean action.
I know that Brainjocks Score has the concept of a Snippet and not sure of what SXA calls theirs. But those are for MVC. I am looking for a little guidance on the code that would let us accomplish the same thing in webforms. Its a precompiled set of renderings that I can drop in a placeholder.