public void MakeNewHomeWorkspace(object parameter)
{
// if the workspace is unsaved, prompt to save
// otherwise overwrite the home workspace with new workspace
if (!Model.HomeSpace.HasUnsavedChanges || AskUserToSaveWorkspaceOrCancel(this.Model.HomeSpace))
{
Model.CurrentSpace = this.Model.HomeSpace;
_model.Clear(null);
}
}