An environment is a template for creating the different environment instances that you can provision. It includes only the subset of system components that are needed in a given test environment. You can define any number of environments from a single system.
To define an environment:
"Prune" the diagram to eliminate any components that are not relevant to your particular environment. To prune an element, hover over the component, then select Remove from the drop-down menu.
Once an element is "pruned," it is moved to the System Components tray. By default, pruned components will be removed from the diagram. If you prefer to have them grayed out on the diagram, check the Show on diagram button above the System Components tray. If you later want to re-connect a pruned component, drag it anywhere in the main editor panel. CTP will then add the component in its original position and re-establish the connections originally associated with that component.
Click Save to save this environment.
If you want to create an environment that is similar to an existing one, you can create and modify a new version of that existing system. For details, see Creating System Sets and Environment Sets.