You can explore or open an RFLP model attached to a project.
The name of the project appears:
In the tab title
In the root node name of the tree.
If you add a new tree in such model, a dialog box indicates that the selected object might not be part of the project associated to the tab.
If you add a tree that is not part of the same project, this modifies the tab title and root node name: the name of the project is replaced by RFLP from <Project> ++.