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.

1. Click on a system in the Workspace tab and click Add Environment in the toolbar.
   
2. (Optional) Rename the environment by clicking in the name field and entering a new name.
3. (Optional) Open the environment information panel, then modify the environment name, description, tags, and variables as desired. To quickly add multiple tags, specify multiple tag names separated by a comma.
   
   
   
   

4. "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.

5. You can also delete unnecessary component instances by choosing Delete from the menu.
   

6. 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.

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