diff --git a/osu.Game/Rulesets/Edit/HitObjectComposer.cs b/osu.Game/Rulesets/Edit/HitObjectComposer.cs
index 35896d4982..b47cf97a4d 100644
--- a/osu.Game/Rulesets/Edit/HitObjectComposer.cs
+++ b/osu.Game/Rulesets/Edit/HitObjectComposer.cs
@@ -182,8 +182,7 @@ namespace osu.Game.Rulesets.Edit
         /// <summary>
         /// Construct a relevant blueprint container. This will manage hitobject selection/placement input handling and display logic.
         /// </summary>
-        protected virtual ComposeBlueprintContainer CreateBlueprintContainer()
-            => new ComposeBlueprintContainer(this);
+        protected virtual ComposeBlueprintContainer CreateBlueprintContainer() => new ComposeBlueprintContainer(this);
 
         /// <summary>
         /// Construct a drawable ruleset for the provided ruleset.
diff --git a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
index bd22c7329a..7f81629f80 100644
--- a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
@@ -67,7 +67,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// <summary>
         /// Creates a <see cref="Components.SelectionHandler{T}"/> which outlines <see cref="DrawableHitObject"/>s and handles movement of selections.
         /// </summary>
-        protected virtual SelectionHandler<T> CreateSelectionHandler() => new SelectionHandler<T>();
+        protected abstract SelectionHandler<T> CreateSelectionHandler();
 
         /// <summary>
         /// Creates a <see cref="SelectionBlueprint{T}"/> for a specific <see cref="DrawableHitObject"/>.
diff --git a/osu.Game/Screens/Edit/Compose/Components/EditorBlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/EditorBlueprintContainer.cs
index aef02d5ffd..0cb9cf930c 100644
--- a/osu.Game/Screens/Edit/Compose/Components/EditorBlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/EditorBlueprintContainer.cs
@@ -135,6 +135,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
         protected override Container<SelectionBlueprint<HitObject>> CreateSelectionBlueprintContainer() => new HitObjectOrderedSelectionContainer { RelativeSizeAxes = Axes.Both };
 
+        protected override SelectionHandler<HitObject> CreateSelectionHandler() => new EditorSelectionHandler();
+
         protected override void SelectAll()
         {
             Composer.Playfield.KeepAllAlive();
diff --git a/osu.Game/Screens/Edit/Compose/Components/EditorSelectionHandler.cs b/osu.Game/Screens/Edit/Compose/Components/EditorSelectionHandler.cs
index 4c6833cc4a..4b85b5cc0e 100644
--- a/osu.Game/Screens/Edit/Compose/Components/EditorSelectionHandler.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/EditorSelectionHandler.cs
@@ -101,11 +101,11 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// </summary>
         protected virtual void UpdateTernaryStates()
         {
-            SelectionNewComboState.Value = GetStateFromSelection(EditorBeatmap.SelectedHitObjects.OfType<IHasComboInformation>(), h => h.NewCombo);
+            SelectionNewComboState.Value = GetStateFromSelection(SelectedItems.OfType<IHasComboInformation>(), h => h.NewCombo);
 
             foreach (var (sampleName, bindable) in SelectionSampleStates)
             {
-                bindable.Value = GetStateFromSelection(EditorBeatmap.SelectedHitObjects, h => h.Samples.Any(s => s.Name == sampleName));
+                bindable.Value = GetStateFromSelection(SelectedItems, h => h.Samples.Any(s => s.Name == sampleName));
             }
         }
 
diff --git a/osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs b/osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs
index 59ade746a9..4b99aa5da7 100644
--- a/osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs
@@ -25,7 +25,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
     /// <summary>
     /// A component which outlines <see cref="DrawableHitObject"/>s and handles movement of selections.
     /// </summary>
-    public class SelectionHandler<T> : CompositeDrawable, IKeyBindingHandler<PlatformAction>
+    public abstract class SelectionHandler<T> : CompositeDrawable, IKeyBindingHandler<PlatformAction>
     {
         /// <summary>
         /// The currently selected blueprints.
@@ -47,7 +47,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         [Resolved(CanBeNull = true)]
         protected IEditorChangeHandler ChangeHandler { get; private set; }
 
-        public SelectionHandler()
+        protected SelectionHandler()
         {
             selectedBlueprints = new List<SelectionBlueprint<T>>();
 
@@ -265,9 +265,11 @@ namespace osu.Game.Screens.Edit.Compose.Components
                 DeleteSelected();
         }
 
-        protected virtual void DeleteItems(IEnumerable<T> items)
-        {
-        }
+        /// <summary>
+        /// Called whenever the deletion of items has been requested.
+        /// </summary>
+        /// <param name="items">The items to be deleted.</param>
+        protected abstract void DeleteItems(IEnumerable<T> items);
 
         /// <summary>
         /// Ensure the blueprint is in a selected state.