Entities that are behind other entities can be selected using a listbox that appears when hovering the cursor over them, itemcomponent GUIFrames aren't added to GUIUpdateList in sub editor (unless in character mode)

Subsurface/Source/Items/Components/Holdable/RepairTool.cs

@@ -177,7 +177,7 @@ namespace Barotrauma.Items.Components
             Item targetItem;
             if ((targetStructure = (targetBody.UserData as Structure)) != null)
             {
-                if (!fixableEntities.Contains(targetStructure.Name)) return;
+                if (!fixableEntities.Contains("structure") && !fixableEntities.Contains(targetStructure.Name)) return;
                 if (targetStructure.IsPlatform) return;
 
                 int sectionIndex = targetStructure.FindSectionIndex(ConvertUnits.ToDisplayUnits(pickedPosition));

Subsurface/Source/Items/Item.cs

@@ -1145,23 +1145,32 @@ namespace Barotrauma
 
         public override void AddToGUIUpdateList()
         {
-            if (condition <= 0.0f)
-            {
-                FixRequirement.AddToGUIUpdateList();
-                return;
-            }
-
-            if (HasInGameEditableProperties)
+            if (Screen.Selected is EditMapScreen)
             {
                 if (editingHUD != null) editingHUD.AddToGUIUpdateList();
             }
-
-            foreach (ItemComponent ic in components)
+            else
             {
-                ic.AddToGUIUpdateList();
+                if (HasInGameEditableProperties)
+                {
+                    if (editingHUD != null) editingHUD.AddToGUIUpdateList();
+                }
             }
 
-            if (Screen.Selected is EditMapScreen && editingHUD != null) editingHUD.AddToGUIUpdateList();
+            if (Character.Controlled!=null && Character.Controlled.SelectedConstruction == this)
+            {
+
+                if (condition <= 0.0f)
+                {
+                    FixRequirement.AddToGUIUpdateList();
+                    return;
+                }
+
+                foreach (ItemComponent ic in components)
+                {
+                    ic.AddToGUIUpdateList();
+                }
+            }
         }
 
         public virtual void UpdateHUD(Camera cam, Character character)