# Welcome to the space runner! Here you will learn what happens when ask to `show` a {{gtClass:BlSpace}}. On the right is a flow diagram of the important actions that should happen in order for a space to appear. By default all nodes in the diagram are gray, meaning that those actions didn't happen yet.
Now press the `Start` button to show a new space created by {{gtMethod:GtMonitorSpaceRunner>>#createSpace}}. Don't be afraid, expand the method to customize and create your own space! If everything worked correctly a new space should have appeared and most of the step in the diagram are now green. It is possible that a few nodes are still gray, it means that those steps were not neccessary and were skipped. Important is that there is a path in the flow diagram that goes from the very first step until the end and connects only green nodes. Congratulations! Your Space is alive! Feel free to play with it :) When done press the `Stop` button to safely close the space. Or press the `Reset` button to put everything back, just like it was before.
