diff --git a/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.cpp b/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.cpp
index 7f8822c..ebfbf12 100644
--- a/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.cpp
+++ b/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.cpp
@@ -8,9 +8,9 @@
 
 namespace studio {
 
-ObjectExplorerModel::ObjectExplorerModel(ox::StringView name, ObjectExplorerModel *parent) noexcept:
+ObjectExplorerModel::ObjectExplorerModel(ox::StringParam name, ObjectExplorerModel *parent) noexcept:
 		m_parent(parent),
-		m_name(name),
+		m_name(std::move(name)),
 		m_fullPath(m_parent ? (m_parent->m_fullPath + "/" + m_name) : ox::String{}) {
 }
 
diff --git a/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.hpp b/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.hpp
index 8e2ea26..a1e37da 100644
--- a/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.hpp
+++ b/src/jasper/modules/world/src/studio/worldeditor/objectexplorer-imgui.hpp
@@ -15,7 +15,7 @@ class ObjectExplorerModel {
 		ox::String m_fullPath;
 		ox::Vector<ox::UPtr<ObjectExplorerModel>> m_children;
 	public:
-		explicit ObjectExplorerModel(ox::StringView name, ObjectExplorerModel *parent = {}) noexcept;
+		explicit ObjectExplorerModel(ox::StringParam name, ObjectExplorerModel *parent = {}) noexcept;
 		void draw(turbine::Context &ctx) const noexcept;
 	private:
 };
diff --git a/src/jasper/modules/world/src/studio/worldeditor/worldeditor-imgui.cpp b/src/jasper/modules/world/src/studio/worldeditor/worldeditor-imgui.cpp
index 177637b..0d6cc70 100644
--- a/src/jasper/modules/world/src/studio/worldeditor/worldeditor-imgui.cpp
+++ b/src/jasper/modules/world/src/studio/worldeditor/worldeditor-imgui.cpp
@@ -201,6 +201,12 @@ void WorldEditorImGui::drawObjSetSelector() noexcept {
 		}
 		return setName;
 	}, m_doc.objSets.size(), m_palMgr.selectedIdx);
+	if (ig::DragDropTarget const d; d) {
+		auto const [fr, err] = ig::getDragDropPayload<studio::FileRef>("FileRef");
+		if (!err && endsWith(fr.path, FileExt_jwob)) {
+			std::ignore = addObjSet(fr.path);
+		}
+	}
 }
 
 void WorldEditorImGui::drawObjSelector() noexcept {
@@ -386,7 +392,7 @@ ox::Error WorldEditorImGui::handleDrop(float const fbPaneScale) noexcept {
 ox::Error WorldEditorImGui::addObjSet(ox::StringViewCR path) noexcept {
 	OX_REQUIRE(uuid, getUuid(keelCtx(m_sctx), path));
 	std::ignore = pushCommand<AddObjectSet>(m_doc, uuid);
-	return {};
+	return loadObjectSets();
 }
 
 void WorldEditorImGui::rmObjSet() noexcept {