diff --git a/src/olympic/studio/applib/src/CMakeLists.txt b/src/olympic/studio/applib/src/CMakeLists.txt
index 1c94ba44..2127d8fe 100644
--- a/src/olympic/studio/applib/src/CMakeLists.txt
+++ b/src/olympic/studio/applib/src/CMakeLists.txt
@@ -5,6 +5,7 @@ add_library(
 		deleteconfirmation.cpp
 		filedialogmanager.cpp
 		main.cpp
+		newdir.cpp
 		newmenu.cpp
 		newproject.cpp
 		projectexplorer.cpp
diff --git a/src/olympic/studio/applib/src/deleteconfirmation.cpp b/src/olympic/studio/applib/src/deleteconfirmation.cpp
index 9eaa591c..9ef0e063 100644
--- a/src/olympic/studio/applib/src/deleteconfirmation.cpp
+++ b/src/olympic/studio/applib/src/deleteconfirmation.cpp
@@ -43,7 +43,7 @@ void DeleteConfirmation::draw(StudioContext &ctx) noexcept {
 		case Stage::Open:
 			drawWindow(ctx.tctx, m_open, [this] {
 				ImGui::Text("Are you sure you want to delete %s?", m_path.c_str());
-				if (ig::PopupControlsOkCancel(m_open) != ig::PopupResponse::None) {
+				if (ig::PopupControlsOkCancel(m_open, "Yes", "No") != ig::PopupResponse::None) {
 					deleteFile.emit(m_path);
 					close();
 				}
diff --git a/src/olympic/studio/applib/src/newdir.cpp b/src/olympic/studio/applib/src/newdir.cpp
new file mode 100644
index 00000000..9f2c8709
--- /dev/null
+++ b/src/olympic/studio/applib/src/newdir.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2016 - 2025 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include <studio/imguiutil.hpp>
+
+#include "newdir.hpp"
+
+namespace studio {
+
+NewDir::NewDir() noexcept {
+	setTitle("New Directory");
+	setSize({280, 0});
+}
+
+void NewDir::openPath(ox::StringViewCR path) noexcept {
+	open();
+	m_path = path;
+}
+
+void NewDir::open() noexcept {
+	m_path = "";
+	m_stage = Stage::Opening;
+}
+
+void NewDir::close() noexcept {
+	m_stage = Stage::Closed;
+	m_open = false;
+}
+
+bool NewDir::isOpen() const noexcept {
+	return m_open;
+}
+
+void NewDir::draw(StudioContext &ctx) noexcept {
+	switch (m_stage) {
+		case Stage::Closed:
+			break;
+		case Stage::Opening:
+			ImGui::OpenPopup(title().c_str());
+			m_open = true;
+		[[fallthrough]];
+		case Stage::Open:
+			drawWindow(ctx.tctx, m_open, [this] {
+				if (m_stage == Stage::Opening) {
+					ImGui::SetKeyboardFocusHere();
+				}
+				ig::InputText("Name", m_str);
+				if (ig::PopupControlsOkCancel(m_open) == ig::PopupResponse::OK) {
+					newDir.emit(m_path + "/" + m_str);
+					close();
+				}
+			});
+			m_stage = Stage::Open;
+			break;
+	}
+}
+
+}
diff --git a/src/olympic/studio/applib/src/newdir.hpp b/src/olympic/studio/applib/src/newdir.hpp
new file mode 100644
index 00000000..b79ef0b9
--- /dev/null
+++ b/src/olympic/studio/applib/src/newdir.hpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016 - 2025 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#pragma once
+
+#include <ox/std/string.hpp>
+
+#include <studio/context.hpp>
+#include <studio/popup.hpp>
+
+namespace studio {
+
+class NewDir final: public Popup {
+ 	private:
+		enum class Stage {
+			Closed,
+			Opening,
+			Open,
+		};
+		Stage m_stage = Stage::Closed;
+		bool m_open{};
+		ox::String m_path;
+		ox::IString<255> m_str;
+
+	public:
+		ox::Signal<ox::Error(ox::StringViewCR path)> newDir;
+
+		NewDir() noexcept;
+
+		void openPath(ox::StringViewCR path) noexcept;
+
+		void open() noexcept override;
+
+		void close() noexcept override;
+
+		[[nodiscard]]
+		bool isOpen() const noexcept override;
+
+		void draw(StudioContext &ctx) noexcept override;
+
+		[[nodiscard]]
+		constexpr ox::CStringView value() const noexcept {
+			return m_str;
+		}
+
+};
+
+}
diff --git a/src/olympic/studio/applib/src/projecttreemodel.cpp b/src/olympic/studio/applib/src/projecttreemodel.cpp
index aab3604f..51e945ef 100644
--- a/src/olympic/studio/applib/src/projecttreemodel.cpp
+++ b/src/olympic/studio/applib/src/projecttreemodel.cpp
@@ -27,13 +27,13 @@ ProjectTreeModel::ProjectTreeModel(ProjectTreeModel &&other) noexcept:
 	m_children(std::move(other.m_children)) {
 }
 
-void ProjectTreeModel::draw(turbine::Context &ctx) const noexcept {
+void ProjectTreeModel::draw(turbine::Context &tctx) const noexcept {
 	constexpr auto dirFlags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick;
 	if (!m_children.empty()) {
 		if (ImGui::TreeNodeEx(m_name.c_str(), dirFlags)) {
             drawDirContextMenu();
 			for (auto const&child : m_children) {
-				child->draw(ctx);
+				child->draw(tctx);
 			}
 			ImGui::TreePop();
 		} else {
@@ -54,6 +54,9 @@ void ProjectTreeModel::draw(turbine::Context &ctx) const noexcept {
 				ImGui::EndPopup();
 			}
 			ImGui::TreePop();
+			ig::dragDropSource([this] {
+				ImGui::Text("%s", m_name.c_str());
+			});
 		}
 	}
 }
@@ -70,13 +73,16 @@ void ProjectTreeModel::drawDirContextMenu() const noexcept {
         if (ImGui::MenuItem("Add Directory")) {
             m_explorer.addDir.emit(fullPath());
         }
+		if (ImGui::MenuItem("Delete")) {
+			m_explorer.deleteItem.emit(fullPath());
+		}
         ImGui::EndPopup();
     }
 }
 
 ox::BasicString<255> ProjectTreeModel::fullPath() const noexcept {
 	if (m_parent) {
-		return m_parent->fullPath() + "/" + ox::StringView(m_name);
+		return m_parent->fullPath() + "/" + m_name;
 	}
 	return {};
 }
diff --git a/src/olympic/studio/applib/src/projecttreemodel.hpp b/src/olympic/studio/applib/src/projecttreemodel.hpp
index f8b1bee3..e7060d4e 100644
--- a/src/olympic/studio/applib/src/projecttreemodel.hpp
+++ b/src/olympic/studio/applib/src/projecttreemodel.hpp
@@ -25,7 +25,7 @@ class ProjectTreeModel {
 
 		ProjectTreeModel(ProjectTreeModel &&other) noexcept;
 
-		void draw(turbine::Context &ctx) const noexcept;
+		void draw(turbine::Context &tctx) const noexcept;
 
 		void setChildren(ox::Vector<ox::UPtr<ProjectTreeModel>> children) noexcept;
 
diff --git a/src/olympic/studio/applib/src/studioapp.cpp b/src/olympic/studio/applib/src/studioapp.cpp
index 6265f863..a9358b33 100644
--- a/src/olympic/studio/applib/src/studioapp.cpp
+++ b/src/olympic/studio/applib/src/studioapp.cpp
@@ -52,6 +52,7 @@ StudioUI::StudioUI(turbine::Context &ctx, ox::StringParam projectDataDir) noexce
 		m_aboutPopup(m_tctx) {
 	turbine::setApplicationData(m_tctx, &m_sctx);
 	m_projectExplorer.fileChosen.connect(this, &StudioUI::openFile);
+	m_projectExplorer.addDir.connect(this, &StudioUI::addDir);
 	m_projectExplorer.addItem.connect(this, &StudioUI::addFile);
 	m_projectExplorer.deleteItem.connect(this, &StudioUI::deleteFile);
 	m_newProject.finished.connect(this, &StudioUI::createOpenProject);
@@ -344,6 +345,11 @@ void StudioUI::handleKeyInput() noexcept {
 	}
 }
 
+ox::Error StudioUI::addDir(ox::StringViewCR path) noexcept {
+	m_newDirDialog.openPath(path);
+	return {};
+}
+
 ox::Error StudioUI::addFile(ox::StringViewCR path) noexcept {
 	m_newMenu.openPath(path);
 	return {};
@@ -369,8 +375,10 @@ ox::Error StudioUI::openProjectPath(ox::StringParam path) noexcept {
 			ox::make_unique_catch<Project>(keelCtx(m_tctx), std::move(path), m_projectDataDir)
 			        .moveTo(m_project));
 	m_sctx.project = m_project.get();
-	m_deleteConfirmation.deleteFile.connect(m_sctx.project, &Project::deleteItem);
 	turbine::setWindowTitle(m_tctx, ox::sfmt("{} - {}", keelCtx(m_tctx).appName, m_project->projectPath()));
+	m_deleteConfirmation.deleteFile.connect(m_sctx.project, &Project::deleteItem);
+	m_newDirDialog.newDir.connect(m_sctx.project, &Project::mkdir);
+	m_project->dirAdded.connect(&m_projectExplorer, &ProjectExplorer::refreshProjectTreeModel);
 	m_project->fileAdded.connect(&m_projectExplorer, &ProjectExplorer::refreshProjectTreeModel);
 	m_project->fileDeleted.connect(&m_projectExplorer, &ProjectExplorer::refreshProjectTreeModel);
 	m_openFiles.clear();
diff --git a/src/olympic/studio/applib/src/studioapp.hpp b/src/olympic/studio/applib/src/studioapp.hpp
index a0373624..199feac2 100644
--- a/src/olympic/studio/applib/src/studioapp.hpp
+++ b/src/olympic/studio/applib/src/studioapp.hpp
@@ -15,6 +15,7 @@
 
 #include "aboutpopup.hpp"
 #include "deleteconfirmation.hpp"
+#include "newdir.hpp"
 #include "newmenu.hpp"
 #include "newproject.hpp"
 #include "projectexplorer.hpp"
@@ -41,13 +42,15 @@ class StudioUI: public ox::SignalHandler {
 		BaseEditor *m_activeEditorUpdatePending = nullptr;
 		NewMenu m_newMenu;
 		DeleteConfirmation m_deleteConfirmation;
+		NewDir m_newDirDialog;
 		NewProject m_newProject;
 		AboutPopup m_aboutPopup;
-		ox::Array<Popup*, 4> const m_popups = {
+		ox::Array<Popup*, 5> const m_popups = {
 			&m_newMenu,
 			&m_newProject,
 			&m_aboutPopup,
 			&m_deleteConfirmation,
+			&m_newDirDialog,
 		};
 		bool m_showProjectExplorer = true;
 
@@ -87,6 +90,8 @@ class StudioUI: public ox::SignalHandler {
 
 		void handleKeyInput() noexcept;
 
+		ox::Error addDir(ox::StringViewCR path) noexcept;
+
 		ox::Error addFile(ox::StringViewCR path) noexcept;
 
 		ox::Error deleteFile(ox::StringViewCR path) noexcept;
diff --git a/src/olympic/studio/modlib/include/studio/imguiutil.hpp b/src/olympic/studio/modlib/include/studio/imguiutil.hpp
index 01cd3e84..c82f32e8 100644
--- a/src/olympic/studio/modlib/include/studio/imguiutil.hpp
+++ b/src/olympic/studio/modlib/include/studio/imguiutil.hpp
@@ -175,9 +175,16 @@ enum class PopupResponse {
 	Cancel,
 };
 
-PopupResponse PopupControlsOkCancel(float popupWidth, bool &popupOpen);
+PopupResponse PopupControlsOkCancel(
+	float popupWidth,
+	bool &popupOpen,
+	ox::CStringViewCR ok = "OK",
+	ox::CStringViewCR cancel = "Cancel");
 
-PopupResponse PopupControlsOkCancel(bool &popupOpen);
+PopupResponse PopupControlsOkCancel(
+	bool &popupOpen,
+	ox::CStringViewCR ok = "OK",
+	ox::CStringViewCR cancel = "Cancel");
 
 [[nodiscard]]
 bool BeginPopup(turbine::Context &ctx, ox::CStringViewCR popupName, bool &show, ImVec2 const&sz = {285, 0});
diff --git a/src/olympic/studio/modlib/include/studio/project.hpp b/src/olympic/studio/modlib/include/studio/project.hpp
index 8c8221b4..8ee319fe 100644
--- a/src/olympic/studio/modlib/include/studio/project.hpp
+++ b/src/olympic/studio/modlib/include/studio/project.hpp
@@ -19,6 +19,7 @@ namespace studio {
 
 enum class ProjectEvent {
 	None,
+	DirAdded,
 	FileAdded,
 	// FileRecognized is triggered for all matching files upon a new
 	// subscription to a section of the project and upon the addition of a file.
@@ -120,6 +121,7 @@ class Project: public ox::SignalHandler {
 	// signals
 	public:
 		ox::Signal<ox::Error(ProjectEvent, ox::StringViewCR)> fileEvent;
+		ox::Signal<ox::Error(ox::StringViewCR)> dirAdded;
 		ox::Signal<ox::Error(ox::StringViewCR)> fileAdded;
 		// FileRecognized is triggered for all matching files upon a new
 		// subscription to a section of the project and upon the addition of a
@@ -177,6 +179,9 @@ ox::Error Project::subscribe(ProjectEvent e, ox::SignalHandler *tgt, Functor &&s
 	switch (e) {
 		case ProjectEvent::None:
 			break;
+		case ProjectEvent::DirAdded:
+			connect(this, &Project::dirAdded, tgt, slot);
+			break;
 		case ProjectEvent::FileAdded:
 			connect(this, &Project::fileAdded, tgt, slot);
 			break;
diff --git a/src/olympic/studio/modlib/src/imguiutil.cpp b/src/olympic/studio/modlib/src/imguiutil.cpp
index 7618a2aa..b6d8fb2a 100644
--- a/src/olympic/studio/modlib/src/imguiutil.cpp
+++ b/src/olympic/studio/modlib/src/imguiutil.cpp
@@ -54,18 +54,22 @@ bool PushButton(ox::CStringViewCR lbl, ImVec2 const&btnSz) noexcept {
 	return ImGui::Button(lbl.c_str(), btnSz);
 }
 
-PopupResponse PopupControlsOkCancel(float popupWidth, bool &popupOpen) {
+PopupResponse PopupControlsOkCancel(
+	float popupWidth,
+	bool &popupOpen,
+	ox::CStringViewCR ok,
+	ox::CStringViewCR cancel) {
 	auto out = PopupResponse::None;
 	constexpr auto btnSz = ImVec2{50, BtnSz.y};
 	ImGui::Separator();
 	ImGui::SetCursorPosX(popupWidth - 118);
-	if (ImGui::Button("OK", btnSz)) {
+	if (ImGui::Button(ok.c_str(), btnSz)) {
 		ImGui::CloseCurrentPopup();
 		popupOpen = false;
 		out = PopupResponse::OK;
 	}
 	ImGui::SameLine();
-	if (ImGui::IsKeyDown(ImGuiKey_Escape) || ImGui::Button("Cancel", btnSz)) {
+	if (ImGui::IsKeyDown(ImGuiKey_Escape) || ImGui::Button(cancel.c_str(), btnSz)) {
 		ImGui::CloseCurrentPopup();
 		popupOpen = false;
 		out = PopupResponse::Cancel;
@@ -73,8 +77,11 @@ PopupResponse PopupControlsOkCancel(float popupWidth, bool &popupOpen) {
 	return out;
 }
 
-PopupResponse PopupControlsOkCancel(bool &popupOpen) {
-	return PopupControlsOkCancel(ImGui::GetContentRegionAvail().x + 17, popupOpen);
+PopupResponse PopupControlsOkCancel(
+	bool &popupOpen,
+	ox::CStringViewCR ok,
+	ox::CStringViewCR cancel) {
+	return PopupControlsOkCancel(ImGui::GetContentRegionAvail().x + 17, popupOpen, ok, cancel);
 }
 
 bool BeginPopup(turbine::Context &ctx, ox::CStringViewCR popupName, bool &show, ImVec2 const&sz) {
diff --git a/src/olympic/studio/modlib/src/project.cpp b/src/olympic/studio/modlib/src/project.cpp
index 2777483a..cd90d8a0 100644
--- a/src/olympic/studio/modlib/src/project.cpp
+++ b/src/olympic/studio/modlib/src/project.cpp
@@ -59,10 +59,10 @@ ox::Error Project::mkdir(ox::StringViewCR path) const noexcept {
 	auto const [stat, err] = m_fs.stat(path);
 	if (err) {
 		OX_RETURN_ERROR(m_fs.mkdir(path, true));
-		fileUpdated.emit(path, {});
+		dirAdded.emit(path);
 	}
 	return stat.fileType == ox::FileType::Directory ?
-		ox::Error{} : ox::Error(1, "path exists as normal file");
+		ox::Error{} : ox::Error{1, "path exists as normal file"};
 }
 
 ox::Result<ox::FileStat> Project::stat(ox::StringViewCR path) const noexcept {
@@ -70,11 +70,28 @@ ox::Result<ox::FileStat> Project::stat(ox::StringViewCR path) const noexcept {
 }
 
 ox::Error Project::deleteItem(ox::StringViewCR path) noexcept {
-	auto const err = m_fs.remove(path);
-	if (!err) {
-		fileDeleted.emit(path);
+	OX_REQUIRE(stat, m_fs.stat(path));
+	if (stat.fileType == ox::FileType::Directory) {
+		bool partialRemoval{};
+		OX_REQUIRE(members, m_fs.ls(path));
+		for (auto const&p : members) {
+			partialRemoval = m_fs.remove(ox::sfmt("{}/{}", path, p)) || partialRemoval;
+		}
+		if (partialRemoval) {
+			return ox::Error{1, "failed to remove one or more directory members"};
+		}
+		auto const err = m_fs.remove(path);
+		if (!err) {
+			fileDeleted.emit(path);
+		}
+		return err;
+	} else {
+		auto const err = m_fs.remove(path);
+		if (!err) {
+			fileDeleted.emit(path);
+		}
+		return err;
 	}
-	return err;
 }
 
 bool Project::exists(ox::StringViewCR path) const noexcept {