Version: 2017.3

Selection.activeTransform

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public static Transform activeTransform ;

Description

Returns the active transform. (The one shown in the inspector).

This will never return prefabs or non-modifyable objects.

class SelectionActiveTransform extends ScriptableObject {
    @MenuItem ("Example/Duplicate at Origin _d")
    static function DuplicateSelected() {
        Instantiate(Selection.activeTransform, Vector3.zero, Quaternion.identity);
    }

//The menu item will be disabled if nothing, is selected. @MenuItem ("Example/Duplicate at Origin _d", true) static function ValidateSelection() { return Selection.activeTransform != null; } }