What he means is that you can make a private variable that is called (timer) and say:
[code:727rc9kf]Always:Subtract 1*timedelta from cheese('timer')
Timer Less or Equal 0=System:Spawn cheese at random(*) and random(**)
Timer Less or Equal 0=Set Timer random(***)[/code:727rc9kf]
*=The number will be the X amount of your layout
**=This will be the Y amount of your layout
***=This will be every how many seconds the thing will spawn
Hope you understand. I will try to post a cap. . .