This is just a test I made because I needed 2-8 objects to be placed in a random squares in a 3x3 grid, overlayed on any size playfield.

Based on Eliyahu's random-pool-string example.

No extensions, 3 events.

Works with any frame size, easily adaptable for any grid size and any other use.

NOTE: all 9 possible coordinates are stored as a string and then 'parsed'.

You can set the number of actives to be placed by changing the amount of times the loop 'place' is run.