Thanks so much for the tip! Now that I know that, I was able to create as many macros as I needed! I did it directly in the registry.
I put together a Python script that grabs Ohio River conditions data from a website and writes them to text files. I then created a Blue Iris Tools add-on that runs that script every time Blue Iris Tools retrieves the weather. So now I can have all the weather and river conditions info on my IP camera overlay.
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Great view of the river! Long shot, but any chance you have video from the flyover for the Reds Opening Day last year on 3/28?