diff --git a/constants.py b/constants.py
index 00bbd9d..f2c2d7c 100644
--- a/constants.py
+++ b/constants.py
@@ -21,6 +21,8 @@ MOVIE_SUFFIXES = ['.mov', '.mp4']
 SOUND_SUFFIXES = ['.eac3', '.mka', '.ogg', '.mp3', '.oga', '.ac3', '.flac', '.aiff', '.wav', '.wma', '.aac', '.m4a', '.aif', '.mp2']
 
 ASSET_ITEMS = []
+PROJECT_ITEMS = []
+EPISODE_ITEMS = []
 
 CONFIG_DIR = Path(appdirs.user_config_dir(__package__.split('.')[0]))
 PREVIEWS_DIR = CONFIG_DIR / 'thumbnails'
diff --git a/ui/properties.py b/ui/properties.py
index 5c7caac..f1429a5 100644
--- a/ui/properties.py
+++ b/ui/properties.py
@@ -19,43 +19,8 @@ from vse_toolbox.bl_utils import get_addon_prefs, get_scene_settings
 from vse_toolbox.constants import ASSET_PREVIEWS, TRACKERS, PREVIEWS_DIR
 from vse_toolbox.file_utils import norm_str, parse
 from vse_toolbox.sequencer_utils import get_strip_sequence_name
-
-
-def get_episodes_items(self, context):
-    settings = get_scene_settings()
-
-    project = settings.active_project
-    if not project:
-        return [('/', '/', '', 0)]
-
-    episodes = project.episodes
-    if not episodes:
-        return [('/', '/', '', 0)]
+from vse_toolbox import constants
     
-    return [(e, e, '', i) for i, e in enumerate(episodes.keys())]
-
-def get_project_items(self, context):
-    if not self.projects:
-        return [('/', '/', '', 0)]
-    
-    return [(p, p, '', i) for i, p in enumerate(self.projects.keys())]
-
-def on_project_updated(self, context):
-    settings = get_scene_settings()
-    settings['episodes'] = 0
-
-    #print('Update active Project')
-
-    bpy.ops.vse_toolbox.load_assets()
-
-    if settings.active_project:
-        settings.active_project.set_strip_metadata()
-    
-    os.environ['TRACKER_PROJECT_ID'] = settings.active_project.id
-    
-def on_episode_updated(self, context):
-    settings = get_scene_settings()
-    os.environ['TRACKER_EPISODE_ID'] = settings.active_episode.id
 
 def get_tracker_items(self, context):
     return [(norm_str(a.__name__, format=str.upper), a.__name__, "", i) for i, a in enumerate(TRACKERS)]
@@ -219,6 +184,23 @@ class SpreadsheetImport(PropertyGroup):
     update_edit: BoolProperty(default=True)
 
 
+def get_episodes_items(self, context):
+    settings = get_scene_settings()
+
+    project = settings.active_project
+    items = [('/', '/', '', 0)]
+    if project and project.episodes:    
+        items = [(e, e, '', i) for i, e in enumerate(project.episodes.keys())]
+
+    constants.EPISODE_ITEMS[:] = items
+    
+    return constants.EPISODE_ITEMS
+
+
+def on_episode_updated(self, context):
+    settings = get_scene_settings()
+    os.environ['TRACKER_EPISODE_ID'] = settings.active_episode.id
+
 class Project(PropertyGroup):
     id : StringProperty(default='')
 
@@ -494,6 +476,29 @@ class VSETB_UL_spreadsheet_export(UIList):
         layout.prop(item, 'export_name', text='')
 
 
+def get_project_items(self, context):
+    items = [('/', '/', '', 0)]
+    if self.projects:
+        items = [(p, p, '', i) for i, p in enumerate(self.projects.keys())]
+    
+    constants.PROJECT_ITEMS[:] = items
+
+    return constants.PROJECT_ITEMS
+
+
+def on_project_updated(self, context):
+    settings = get_scene_settings()
+    settings['episodes'] = 0
+
+    #print('Update active Project')
+
+    bpy.ops.vse_toolbox.load_assets()
+
+    if settings.active_project:
+        settings.active_project.set_strip_metadata()
+    
+    os.environ['TRACKER_PROJECT_ID'] = settings.active_project.id
+
 class VSETB_PGT_scene_settings(PropertyGroup):
 
     projects : CollectionProperty(type=Project)