General procedures for modifying projects

You can modify projects in the Project Editor. Note that the project's PDF must be writable.
To modify a project:

Check out the project's PDF by selecting it in the File List of the Project Editor and then choose File > Check Out....
The Check out dialog appears, in which you can select the file version to check out. See also Checking out a version of a file.
If you want to modify the last version of the project's PDF, press the Exclusive Lock button. If you want to modify another version of the PDF, select that version and then press the Exclusive Lock button.
An alert dialog appears, in which you are asked whether the project structure should be reloaded or not.
Press the Yes button to reload the project structure.
In the Project Editor's Project Tree, double-click on the project you want to modify.
The Project Attributes dialog appears.
Modify the project according to your needs. As a result of modifying the project's attributes, you may have to add or remove files or subprojects to or from the project. In the next section, you will learn how to do so.
Save the project.
If you've modified any of the project's Make attributes, the project's Make Support Files will be regenerated.
If you've included new SNiFF+ file types in the project, you must manually add these files to the project. To do so complete the following steps in the Project Editor:
(i) make sure that the project is selected in the Project Tree
(ii) choose the Add/Remove Files to/from <Project>... command from the Project menu and then add the new files. For details about adding files, please refer to Adding and removing files.
We suggest that you test the modifications to the project by building the project in your Private Working Environment before you check in the changes.
Once you have tested your changes, you can check in the project's PDF and any new files added to the project.
Your modifications will be seen by your team members after the next update of your team's working environments.
The above mentioned process is described in the following illustration: