It took me a few times to understand this, but I get it now. Sadly, this block isn’t really necessary because you can always do this:
When game starts: Repeat times (blank):random block, random block, random block, Repeat times (1): Random block, etc.
While I was typing that I realized you might mean something different than what I thought you meant at first. So, do you mean that in the repeat loop, there would be another loop that repeats a less amount of executions? If so, still not really necessary. I know your thinking of making things cleaner, which isn’t bad, but there are other ways to make code look cleaner, such as magenta and rainbow custom blocks.
You still have a great idea, though. So keep coming up with those great ideas, I’d love to hear them .