"Change State of..." not an action option in Triggers

As a follow-up. One of the first "advanced techniques" I teach new Storyline developers is to mimic a group by pasting all of the extra components of the group into a state of the main object that the group is built around.

For example, if you are making callout of a textbox and an arrow shape, the grouped items could not take a state. But if you cut the arrow shape, used the Edit State option on the text box,  pasted and arranged the arrow shape into that state, then you could duplicate that state, give it a new name, and a new style that meets your needs. Here's another article: https://community.articulate.com/series/storyline-3/articles/storyline-3-adding-and-editing-states

A note: Cropped images don't always appear as expected (or at all) when added to another object's state.