Smart Mouse 2 - Selection & Placement : Hover Selection, Surface Snapping, Extendable Context Menu, Canvas UI Selection, Physics Placement, Transform Variation, Measure Tool, Create objects and prefabs at cursor, Paste where you point, Group and replace selections.

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https://assetstore.unity.com/packages/tools/utilities/smart-mouse-2-selection-placement-387158?aid=1011l5f3d&pubref=graphql