Hello
Do you have at least one project showing up in your CodeWarrior projects view?
If not it is normal that the Open Project and Close Project menu entry are disables.
Close Project is used to close an opened project in the CodeWarrior Projects View.
Open Project is used to open a previously closed project in the CodeWarrior Project view.
If you want to add an existing project you need to import it into the IDE using File > Import > General > Existing Projects into the workspace.
CrasyCat