copy_project command
When you copy a project from a static (non-modifiable) project and do not copy subprojects, and the subprojects have relative work areas, new copies of those subprojects work areas are created in the appropriate locations within the work area of the project being copied. Developers can reuse static subprojects that have relative work areas.
copy_to_file_system command
A project copied to your work area is always copy-based, never link-based, and the files are read-only. You can copy a project to the file system even if the project does not have a work area. File modification time is set to the time the copy is created.
create command
You can create an object and add it to the current
project. You can create a project or a project member (directory or
file), both of which are created as part of a project, or a floating
object. A floating object is a new project that is not created as
a part of a project.
sync command
Your work area is created automatically when
you create a project and when you check out a project using the check-out
commands. As you add new members to your project, your work area is
updated automatically. A sync operation writes out the database files
to the work area.