Editing — Blender Manual
Duplicate Linear in Edit mode — Right-Click Select
Editing — Blender Manual
How to copy bone transform in edit mode? - Blender Stack Exchange
Duplication — Blender Manual
Blender 2.8: Where is the Remove Doubles? • Blender 3D Architect
Duplicate Objects/Duplicate Linked – Blender Knowledgebase
Removing confusing "scale" mechanics from Blender - User Feedback - Developer Forum
Duplicate — Blender Manual
Copy/Paste – Blender Knowledgebase
Mesh appears in Edit mode but disappears in Object mode : r/blender
Move origin to center of mass : EDIT MODE not available? — Right-Click Select
vertices - How to mirror or flip duplicates in edit mode? - Blender Stack Exchange
How to duplicate and link objects in Blender - Artisticrender.com
Blender 2.8 new features: Multi Object Edit - BlenderNation
Blender Duplicate and Separate add-on
Copy and paste in Edit mode? - Basics & Interface - Blender Artists Community
Duplicate in Blender - Coding Ninjas
How to Remove Doubles in Blender?
Blender Donut Notes: 03 · Jeremy Pedersen
Mirror — Blender Manual
BLENDER BASICS 8: Edit Mode and Object Origins - YouTube
