I am trying to make a for each loop that will vary the heights of the buildings in procedural city. I am copying floors on top of each other in a for each loop, and am trying to randomize the number of iterations that the for each loop will go through so that the number of floors will vary. I can't seem to accomplish this, and I suspect it's because I'm not using a good seed for the rand() I am calling in my for loop. I have attached my file below and would very much appreciate some insight. Thank you!

If you make a new metadata node for the first loop and you change the expression in the “foreach_end2” node to
“fit01(rand(detail(”../name for new meta data node/“,”iteration“,0)),10,20)”
it will work.
I made a different approach to check out. This method is a lot faster when using a lot of points to copy to.

I would add a random number to the seed as well, in case you want to randomize more than one value.