first commit

Assets/Scripts/GridGroup.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class GridGroup : MonoBehaviour
+{
+    [SerializeField] private int columns = 3;
+    [SerializeField] private float spacingX = 3f;
+    [SerializeField] private float spacingY = 3f;
+
+    void Start()
+    {
+        for (int i = 0; i < transform.childCount; i++)
+        {
+            int row = i / columns;
+            int col = i % columns;
+
+            Transform child = transform.GetChild(i);
+
+            child.localPosition = new Vector3(
+                col * spacingX,
+                -row * spacingY,
+                0f
+            );
+        }
+    }
+}