diff --git a/Bonsai.Editor/Layout/VisualizerDialogSettings.cs b/Bonsai.Editor/Layout/VisualizerDialogSettings.cs
index af85354d7..9074efff9 100644
--- a/Bonsai.Editor/Layout/VisualizerDialogSettings.cs
+++ b/Bonsai.Editor/Layout/VisualizerDialogSettings.cs
@@ -11,8 +11,16 @@ namespace Bonsai.Design
 #pragma warning restore CS0612 // Type or member is obsolete
     public class VisualizerDialogSettings
     {
+        [XmlIgnore]
         public int? Index { get; set; }
 
+        [XmlAttribute(nameof(Index))]
+        public string IndexXml
+        {
+            get => Index.HasValue ? Index.GetValueOrDefault().ToString() : null;
+            set => Index = !string.IsNullOrEmpty(value) ? int.Parse(value) : null;
+        }
+
         [XmlIgnore]
         public object Tag { get; set; }
 
@@ -44,12 +52,16 @@ public Rectangle Bounds
         // [Obsolete]
         public Collection<int> Mashups { get; } = new Collection<int>();
 
+        public bool VisibleSpecified => Visible;
+
         public bool LocationSpecified => !Location.IsEmpty;
 
         public bool SizeSpecified => !Size.IsEmpty;
 
         public bool WindowStateSpecified => WindowState != FormWindowState.Normal;
 
+        public bool NestedLayoutSpecified => NestedLayout?.DialogSettings.Count > 0;
+
         public bool MashupsSpecified => false;
     }
 }