R4V3N

Mirror Image is a Blender add-on by R4V3N that applies mirroring to the active image along the X or Y axis. It flips one half of the image and overwrites it onto the opposite side.

Smart Box Select is a Blender add-on by R4V3N that adds two selection tools, Smart Box Select and Smart Lasso Select, which set the object closest to the mouse cursor as the active object.

Backup Modifiers is a Blender add-on from R4V3N that applies modifiers while automatically creating a backup. A special apply button lets you switch to the backup, edit, and re-apply modifiers anytime.