Create a Project Configuration
Open the Project Properties Window
Use one of the listed methods to Open the Project Properties window.
Manage Configurations
All projects contain at least one configuration called default. You can see this on the left side of the Project Properties window as the second node in the tree. All items collected as branches below this node are part of the default configuration.
Click on the Manage Configurations button at the bottom-left corner of the Project Properties window.
Duplicate Existing or Create New Configuration
The easiest way to create new configurations will usually be to click on the Duplicate button which duplicates the selected configuration, in this case default. If you know that your new configuration will be nothing like the current configuration, you can click New instead.
Rename the New Configuration
With the new configuration selected, click on the Rename button.
Give it a Name
The name you provide here is what will be displayed in the IDE to identify this particular configuration in places like the Project Properties window and the drop-down box on the main tool bar.
No spaces are allowed in the name. If you put them in, the IDE will automatically remove them.
Click OK when done.
Select and Rename the Default Configuration
Select the original, default configuration and click the Rename button.
Give it a Name
As in step 5, provide a name for this configuration.
Click OK when done.
Close the Configuration Manager
When you are done adding or duplicating configurations, click OK.
Done
You should now see two configurations in the tree on the left side of the Project Properties window. Their names should be the same as what you provided in steps 5 and 7 above. Each one of these may now be configured separately, effectively making them "projects within a project".
You can repeat this process as many times as you like to create any number of configurations within a single project. Obviously the developers have imposed some upper limit on the number of configurations - but so far no one has hit that limit, whatever it is.
