If your organization uses user-defined attributes for projects and tasks, you can control at the template level whether or not user-defined attribute information is displayed on your projects and tasks.
You use the Project Attributes checkbox to control display of user-defined attributes at the project template level.
The attribute contexts designed by your implementation team determine how the system associates your attribute groups with projects and tasks. The Project Attributes checkbox overrides these associations. When you select Project Attributes for a template, the projects created using that template can display any project and task attribute groups with which they have been associated.
You can predefine user-defined attribute values at the project template level just as you can for the attributes that Oracle delivers.
You use the Project Setup page to enter project-level user-defined attributes. You use the Task Details page to enter task-level user-defined attributes.
Other Sources
Setting Up User-Defined Attributes: Oracle Projects Implementation Guide