You can pool them together. If you turn on Advanced Editing under your settings you can create one by clicking pools at the top and then add your posts by clicking add to pool. Here's the help page hypnohub.net/help/pools
As an aside, I recommend picking a good frame from the .gif image and putting it next to the text manip (make a screenshot, crop it, paste the text next to it) to prevent confusion. I think it's frowned upon to have an image that's literally just text.
You can't just download Gimp? It's free and if you did I'd be able to show you how to do everything, such as actually solve your problem instead of avoiding it.