render paths via fnRender correct

config/tree.go

@@ -55,13 +55,14 @@ type PathConfig struct {
 	Filename *FilenameConfig `yaml:"Filename"`
 	Markdown *MarkdownConfig `yaml:"Markdown"`
 
-	Data interface{} `yaml:"Data"`
+	Data map[string]interface{} `yaml:"Data"`
 }
 
 // PathConfigTree is complete config tree of content dir
 type PathConfigTree struct {
 	InputPath  string
 	OutputPath string
+	Hidden     bool // for collections which are not part of the navigation
 
 	InputFiles []string
 	OtherFiles []string