How do I Nest loops

I am experimenting with laying out a playfield programmatically instead of by hand. I wish to create a nested for loop that allows me to place blocks in a row with an attached scale and transform as they come into the playfield. Here is pseudocode

for x = 0 to 20

Create Instance Of Object and place

scale and rotate instance to larger than view port

for x = 1 to number of steps.

Scale = Scale - (scale/number of steps)

rotate instance 360 as it is coming in

next

play sound "Crash"

next

For the life of me I cant figure out how to nest loops.

Use sub-events to nest loops (you can create a sub-event by right-mouse clicking on an event and clicking Add > Subevent). Name each loop and then use the expression "loopindex([loopname])" to get the loop index for a given loop.

Thank you sir, this is exactly what I wanted. Is it fair to say that a sub-event can be placed almost anywhere?