Hierarchy Icons contains two often used modules for quick and easy work:
Hierarchy Icons & Hierarchy Sorting module.
Prefab connection status:
• Disconnected
• Broken
• Have Changes
Object errors status:
• Errors in children objects
• Missing meshes
• Missing scripts
Visibility buttons give to you quick preview of visibility of objects In scene view.
Hierarchy Sorting module adds Alphabetical sorting into hierarchy inspector. For unity 5.4.0 and higher please read "HowTo_EnableSorting.pdf"
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For quick guide see screenshots.