diff --git a/osu.Game.Rulesets.Mania/Edit/ManiaHitObjectComposer.cs b/osu.Game.Rulesets.Mania/Edit/ManiaHitObjectComposer.cs
index 4cb34a217c..d9570bf8be 100644
--- a/osu.Game.Rulesets.Mania/Edit/ManiaHitObjectComposer.cs
+++ b/osu.Game.Rulesets.Mania/Edit/ManiaHitObjectComposer.cs
@@ -120,7 +120,7 @@ namespace osu.Game.Rulesets.Mania.Edit
             }
         }
 
-        public override IEnumerable<string> ConvertSelectionToString()
-            => EditorBeatmap.SelectedHitObjects.Cast<ManiaHitObject>().Select(h => $"{h.StartTime}|{h.Column}");
+        public override string ConvertSelectionToString()
+            => string.Join(',', EditorBeatmap.SelectedHitObjects.Cast<ManiaHitObject>().OrderBy(h => h.StartTime).Select(h => $"{h.StartTime}|{h.Column}"));
     }
 }
diff --git a/osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs b/osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs
index 1943f52c73..396fd41377 100644
--- a/osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs
+++ b/osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs
@@ -82,8 +82,8 @@ namespace osu.Game.Rulesets.Osu.Edit
         protected override ComposeBlueprintContainer CreateBlueprintContainer()
             => new OsuBlueprintContainer(this);
 
-        public override IEnumerable<string> ConvertSelectionToString()
-            => selectedHitObjects.Cast<OsuHitObject>().Select(h => (h.IndexInCurrentCombo + 1).ToString());
+        public override string ConvertSelectionToString()
+            => string.Join(',', selectedHitObjects.Cast<OsuHitObject>().OrderBy(h => h.StartTime).Select(h => (h.IndexInCurrentCombo + 1).ToString()));
 
         private DistanceSnapGrid distanceSnapGrid;
         private Container distanceSnapGridContainer;
diff --git a/osu.Game/Rulesets/Edit/HitObjectComposer.cs b/osu.Game/Rulesets/Edit/HitObjectComposer.cs
index eee16043e4..736fc47dee 100644
--- a/osu.Game/Rulesets/Edit/HitObjectComposer.cs
+++ b/osu.Game/Rulesets/Edit/HitObjectComposer.cs
@@ -438,7 +438,7 @@ namespace osu.Game.Rulesets.Edit
         /// </summary>
         public abstract bool CursorInPlacementArea { get; }
 
-        public virtual IEnumerable<string> ConvertSelectionToString() => Array.Empty<string>();
+        public virtual string ConvertSelectionToString() => string.Empty;
 
         #region IPositionSnapProvider