diff --git a/aegisub/src/base_grid.h b/aegisub/src/base_grid.h
index c812901ed..3f7256d7c 100644
--- a/aegisub/src/base_grid.h
+++ b/aegisub/src/base_grid.h
@@ -143,7 +143,8 @@ public:
 	virtual void SetActiveLine(AssDialogue *new_line);
 	virtual AssDialogue * GetActiveLine() const { return active_line; }
 	virtual void SetSelectedSet(const Selection &new_selection);
-	virtual void GetSelectedSet(Selection &res) const { res.insert(selection.begin(), selection.end()); }
+	virtual void GetSelectedSet(Selection &res) const { res = selection; }
+	virtual Selection GetSelectedSet() const { return selection; }
 	virtual void NextLine();
 	virtual void PrevLine();
 
diff --git a/aegisub/src/selection_controller.h b/aegisub/src/selection_controller.h
index a3f36f835..d064a2f44 100644
--- a/aegisub/src/selection_controller.h
+++ b/aegisub/src/selection_controller.h
@@ -131,6 +131,10 @@ public:
 	/// @param[out] selection Filled with the selected set on return
 	virtual void GetSelectedSet(Selection &selection) const = 0;
 
+	/// @brief Obtain the selected set
+	/// @return The selected set
+	virtual Selection GetSelectedSet() const = 0;
+
 	/// @brief Change the active line to the next in sequence
 	///
 	/// If there is no logical next line in sequence, no change happens. This should