when green flag clicked
set [clone # v] to [1]
repeat (10) //You can replace 10 with how many clones you want
    create clone of [myself v]
    change [clone # v] by (1)
end

when I start as a clone
if <(clone #) = (1)> then
    //do stuff
end
if <(clone #) = (2)> then
    //do stuff
end
if <(clone #) = (3)> then
    //do stuff
end
//and so on...