When you extend the tree view below current projects, the context menu for right-clicking on the background should only show "add new project", but it occasionally hows the add/remove subproject options.
The exact conditions under which this happens are unknown; the current item at that point seems to be the root. (Adding a subproject creates a new project, and selecting "remove" throws an exception.)
When you extend the tree view below current projects, the context menu for right-clicking on the background should only show "add new project", but it occasionally hows the add/remove subproject options. The exact conditions under which this happens are unknown; the current item at that point seems to be the root. (Adding a subproject creates a new project, and selecting "remove" throws an exception.)