You see, I adapted Image Streaming for multiple purposes that maintain IS's concept of narration, concentration, self-generated scenes, and the verbal channel through which one is designed to process and create the produced stimuli. However, I use it for the means of practicing real-life scenarios such as conversations (perhaps some having rules in order for me to exercise certain skill sets or to prepare for a particular anticipated event), while continuing to visualize and absorb details in order to institute a sense of immersion. This activity incorporates all the analytical, observational, and reasoning abilities one experiences during the writing process in further discerning the selected subject, however possesses all the quick-thinking and impulsive responses that the momentary scenario demands. Simultaneously you are allowed leisure to perform at your own pace, so it is beneficial to all the applications of your cognitive functions.
I also have incorporated it for non-visualization purposes, such as observing a seemingly insignificant object, then forcing myself to creatively stream a description about it. While this particular activity may appear irrational, I have noticed benefits where I suddenly discover an enlightening concept about life, which was abstractly derived from pursuing the object of my focus.
There are some other adaptations I have yet to fully contrive and to commit to, but have still entertained the idea of. One includes that after receiving information, for example from reading a book, listening to a lecture, etc, I summarize it out loud to communicate my own understanding, and identify what further needs to be solidified or what I can reason out for myself. So after passively listening, or reading, you can establish all that information by actively using it. Another is that you can expand upon preconceived ideas or topics and explore them through the means of image-streaming, or simply produce novel ones and develop them in a similar manner. The last one that I would be most interested in experimenting with is to have two sides of an argument, and create a session in which you first justify both to your utmost ability through the means of image-streaming, release all prejudices, and objectively see the merits, and afterwards, all the demerits and faults of each as well. This can help in debates to patch up holes in your argument and to fish them out in your adversary's, and it makes you keen all-round in your responses and perceptions.
You can guide visualization meditation with Image Streaming, though, I suppose that is actually Image-Streaming.
So you can see, while these practices are not ideally image streaming, and may be already assigned as other distinct activities and titles that I was unaware of, I generated these in inspiration of learning about image streaming and its benefits, and how they can be applied to a copious amount of different things if you still maintain the application of its defining essence. The way I have adopted Image-Streamed-Inspired activities is very much like Improv games used in theater to refine wit, reaction, understanding, collaboration, etc. Improv games are equally beneficial in their own ways, and you can reference that as a creativity helper as well.