Fill In

This week ive been trying to work on the animations side of Smalltalk programming. The main thing ive been working on is creating morphs withing a square area at random points. Ive succeeded in this, however i had hoped for the morphs to be created one at a time. No matter what I've tried however, the morphs insist on not appearing on screen until all are created. Even when i add a delay into the repeating statement, it adds the delay at the beginning of the command and simply waits a moment before showing them on screen. A screenshot of the end result follows. I'm currently looking for a tutorial for the animation side of squeak which, though I've been told by several tutorials is quite good, none of these tutorials has given any time to it.