diff --git a/src/bonsai/bonsai/core/tool.py b/src/bonsai/bonsai/core/tool.py
index ea149f0ff6..c88b16cf9e 100644
--- a/src/bonsai/bonsai/core/tool.py
+++ b/src/bonsai/bonsai/core/tool.py
@@ -652,6 +652,11 @@ class Owner:
     def set_person(cls, person): pass
     def set_role(cls, role): pass
     def set_user(cls, user): pass
+    def get_application(cls): pass
+    def set_application(cls, application): pass
+    def clear_application(cls): pass
+    def import_application_attributes(cls): pass
+    def export_application_attributes(cls): pass
 
 
 @interface
diff --git a/src/bonsai/test/core/test_owner.py b/src/bonsai/test/core/test_owner.py
index 8108a0437d..b648030407 100644
--- a/src/bonsai/test/core/test_owner.py
+++ b/src/bonsai/test/core/test_owner.py
@@ -18,7 +18,7 @@
 
 
 import bonsai.core.owner as subject
-from test.core.bootstrap import ifc, owner
+from test.core.bootstrap import ifc, owner, Prophecy
 
 
 class TestAddPerson:
@@ -271,3 +271,30 @@ class TestUnassignActor:
     def test_run(self, ifc, owner):
         ifc.run("owner.unassign_actor", relating_actor="actor", related_object="element").should_be_called()
         subject.unassign_actor(ifc, actor="actor", element="element")
+
+
+class TestApplicationUI:
+    def test_enable_editing(self, owner: Prophecy) -> None:
+        owner.set_application("application").should_be_called()
+        owner.import_application_attributes().should_be_called()
+        subject.enable_editing_application(owner, application="application")
+
+    def test_disable_editing(self, owner: Prophecy) -> None:
+        owner.clear_application().should_be_called()
+        subject.disable_editing_application(owner)
+
+    def test_edit(self, ifc: Prophecy, owner: Prophecy) -> None:
+        owner.get_application().should_be_called().will_return("application")
+        owner.export_application_attributes().should_be_called().will_return("attributes")
+        ifc.run("owner.edit_application", application="application", attributes="attributes").should_be_called()
+        owner.clear_application().should_be_called()
+        subject.edit_application(ifc, owner)
+
+    def test_add(self, ifc: Prophecy, owner: Prophecy):
+        ifc.run("owner.add_application").should_be_called().will_return("application")
+
+        # enable editing
+        owner.set_application("application").should_be_called()
+        owner.import_application_attributes().should_be_called()
+
+        assert subject.add_application(ifc, owner) == "application"
diff --git a/src/bonsai/test/tool/test_owner.py b/src/bonsai/test/tool/test_owner.py
index d8b60e50b8..4ff1af6946 100644
--- a/src/bonsai/test/tool/test_owner.py
+++ b/src/bonsai/test/tool/test_owner.py
@@ -18,6 +18,7 @@
 
 import bpy
 import ifcopenshell
+import ifcopenshell.api.owner
 import bonsai.core.tool
 import bonsai.tool as tool
 from test.bim.bootstrap import NewFile
@@ -579,3 +580,48 @@ class TestSetUser(NewFile):
         subject.set_user(user)
         props = subject.get_owner_props()
         assert props.active_user_id == user.id()
+
+
+class TestApplicationUI(NewFile):
+    ifc_class = "IfcApplication"
+    attrs = {
+        "Version": "v001",
+        "ApplicationFullName": "IfcOpenShell",
+        "ApplicationIdentifier": "IfcOpenShell",
+    }
+
+    def test_set(self):
+        application = ifcopenshell.file().create_entity(self.ifc_class)
+        subject.set_application(application)
+        props = subject.get_owner_props()
+        assert props.active_application_id == application.id()
+
+    def test_get(self):
+        ifc = ifcopenshell.file()
+        tool.Ifc.set(ifc)
+        application = ifc.create_entity(self.ifc_class)
+        subject.set_application(application)
+        assert subject.get_application() == application
+
+    def test_run_clear(self):
+        application = ifcopenshell.file().create_entity(self.ifc_class)
+        subject.set_application(application)
+        subject.clear_application()
+        props = subject.get_owner_props()
+        assert props.active_application_id == 0
+
+    def test_import(self):
+        ifc = ifcopenshell.file()
+        tool.Ifc.set(ifc)
+        application = ifc.create_entity(self.ifc_class)
+        for attr, value in self.attrs.items():
+            setattr(application, attr, value)
+        subject.set_application(application)
+        subject.import_application_attributes()
+        props = subject.get_owner_props()
+        for attr, value in self.attrs.items():
+            assert props.application_attributes[attr].get_value() == value
+
+    def test_export(self):
+        self.test_import()
+        assert subject.export_application_attributes() == self.attrs