Add toolbar quick reminder in InfluenceVolume section of PlanarReflectionProbe

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Reflection/PlanarReflectionProbeUI.Drawers.cs

 
         static readonly EditMode.SceneViewEditMode[] k_Toolbar_Static_SceneViewEditModes =
         {
-            EditCenter
+            //EditCenter  //offset have no meanings with planar
-            EditMirrorPosition,
+            //EditMirrorPosition,  //offset have no meanings with planar
             EditMirrorRotation
         };
         static GUIContent[] s_Toolbar_Contents = null;
         {
             get
             {
-                return s_Toolbar_Static_Contents ?? (s_Toolbar_Static_Contents = new[]
+                return s_Toolbar_Static_Contents ?? (s_Toolbar_Static_Contents = new GUIContent[]
-                    EditorGUIUtility.IconContent("MoveTool", "|Move the capture position.")
+                    //EditorGUIUtility.IconContent("MoveTool", "|Move the capture position.")   //offset have no meanings with planar
                 });
             }
         }
             {
                 return s_Toolbar_Mirror_Contents ?? (s_Toolbar_Mirror_Contents = new[]
                 {
-                    EditorGUIUtility.IconContent("MoveTool", "|Move the mirror plane."),
+                    //EditorGUIUtility.IconContent("MoveTool", "|Move the mirror plane."),   //offset have no meanings with planar
                     EditorGUIUtility.IconContent("RotateTool", "|Rotate the mirror plane.")
                 });
             }
 
             GUILayout.FlexibleSpace();
             GUILayout.EndHorizontal();
+        }
+
+        static public void Drawer_ToolBarButton(int buttonIndex, Editor owner, params GUILayoutOption[] styles)
+        {
+            if (GUILayout.Button(toolbar_Contents[buttonIndex], styles))
+            {
+                EditMode.ChangeEditMode(k_Toolbar_SceneViewEditModes[buttonIndex], GetBoundsGetter(owner)(), owner);
+            }
         }
 
         static Func<Bounds> GetBoundsGetter(Editor o)

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Reflection/Volume/InfluenceVolumeUI.Drawers.cs

             var maxFadeDistance = d.boxBaseSize.vector3Value * 0.5f;
             var minFadeDistance = Vector3.zero;
 
+            EditorGUILayout.BeginHorizontal();
+            PlanarReflectionProbeUI.Drawer_ToolBarButton(0, o, GUILayout.Width(28f), GUILayout.MinHeight(22f));
+            EditorGUILayout.EndHorizontal();
-
-            EditorGUILayout.Space();
 
             EditorGUILayout.BeginHorizontal();
             HDReflectionProbeUI.Drawer_AdvancedBlendDistance(
                 CoreEditorUtils.GetContent("Blend Distance|Area around the probe where it is blended with other probes. Only used in deferred probes."),
                 s.isSectionAdvancedInfluenceSettings
                 );
-            //if (GUILayout.Button(toolbar_Contents[1], GUILayout.ExpandHeight(true), GUILayout.Width(28f), GUILayout.MinHeight(22f), GUILayout.MaxHeight((s.isSectionAdvancedInfluenceSettings.value ? 3 : 1) * (EditorGUIUtility.singleLineHeight + 3))))
-            //{
-            //    EditMode.ChangeEditMode(k_Toolbar_SceneViewEditModes[1], GetBoundsGetter(p)(), owner);
-            //}
+            PlanarReflectionProbeUI.Drawer_ToolBarButton(1, o, GUILayout.ExpandHeight(true), GUILayout.Width(28f), GUILayout.MinHeight(22f), GUILayout.MaxHeight((s.isSectionAdvancedInfluenceSettings.value ? 3 : 1) * (EditorGUIUtility.singleLineHeight + 3)));
-            EditorGUILayout.Space();
-
             EditorGUILayout.BeginHorizontal();
             HDReflectionProbeUI.Drawer_AdvancedBlendDistance(
                 d.boxInfluenceNormalPositiveFade,
                 s.isSectionAdvancedInfluenceSettings
                 );
-            //if (GUILayout.Button(toolbar_Contents[2], GUILayout.ExpandHeight(true), GUILayout.Width(28f), GUILayout.MinHeight(22f), GUILayout.MaxHeight((s.isSectionAdvancedInfluenceSettings.value ? 3 : 1) * (EditorGUIUtility.singleLineHeight + 3))))
-            //{
-            //    EditMode.ChangeEditMode(k_Toolbar_SceneViewEditModes[2], GetBoundsGetter(p)(), owner);
-            //}
+            PlanarReflectionProbeUI.Drawer_ToolBarButton(2, o, GUILayout.ExpandHeight(true), GUILayout.Width(28f), GUILayout.MinHeight(22f), GUILayout.MaxHeight((s.isSectionAdvancedInfluenceSettings.value ? 3 : 1) * (EditorGUIUtility.singleLineHeight + 3)));
-
-            EditorGUILayout.Space();
 
             if (s.isSectionAdvancedInfluenceSettings.value)
             {