diff --git a/hamstertools/__init__.py b/hamstertools/__init__.py
index 758d2e6..84eb479 100755
--- a/hamstertools/__init__.py
+++ b/hamstertools/__init__.py
@@ -95,7 +95,6 @@ def list_category_activities(ids):
 def tidy_categories():
     """ Remove categories with no activities """
 
-    # Create a subquery to calculate the count of activities per category
     subquery = (
         HamsterCategory
         .select(HamsterCategory, fn.COUNT(HamsterActivity.id).alias('activities_count'))
@@ -104,7 +103,6 @@ def tidy_categories():
         .alias('subquery')
     )
 
-    # Use the subquery to filter categories where activities_count is 0
     categories = (
         HamsterCategory
         .select()
@@ -601,17 +599,20 @@ def reset():
 @db_.command()
 @click.option('-g', '--global', 'global_', help='Does this file contain mappings to global activties', is_flag=True)
 @click.option('--mapping-path', help='Mapping file')
-def import_csv(mapping_path=None, global_=False):
+def mapping2db(mapping_path=None, global_=False):
     mapping_file = _get_kimai_mapping_file(mapping_path, None)
     next(mapping_file)
     mapping_reader = csv.reader(mapping_file)
     
     for row in mapping_reader:
+
         hamster_category = HamsterCategory.get(name=row[0])
-        hamster_activity = HamsterActivity.get(name=row[1])
+        hamster_activity = HamsterActivity.get(name=row[1],
+                                               category_id=hamster_category.id)
         kimai_customer = KimaiCustomer.get(name=row[2])
         kimai_project = KimaiProject.get(name=row[3],
                                          customer_id=kimai_customer.id)
+
         try:
             kimai_activity = KimaiActivity.get(
                 name=row[4],
diff --git a/hamstertools/app.py b/hamstertools/app.py
index d9153e7..3eed92a 100644
--- a/hamstertools/app.py
+++ b/hamstertools/app.py
@@ -15,6 +15,7 @@ from .db import (
     KimaiProject,
     KimaiCustomer,
     KimaiActivity,
+    HamsterKimaiMapping,
 )
 from .kimai import (
     KimaiAPI,
@@ -78,15 +79,34 @@ class ActivitiesScreen(ListScreen):
     def _refresh(self, filter_query=None):
         self.table.clear()
 
+        facts_count_query = (
+            HamsterFact
+            .select(HamsterFact.activity_id, fn.COUNT(HamsterFact.id).alias('facts_count'))
+            .group_by(HamsterFact.activity_id)
+            .alias('facts_count_query')
+        )
+
+        mappings_count_query = (
+            HamsterKimaiMapping
+            .select(HamsterKimaiMapping.hamster_activity_id,
+                    fn.COUNT(HamsterKimaiMapping.id).alias('mappings_count'))
+            .group_by(HamsterKimaiMapping.hamster_activity_id)
+            .alias('mappings_count_query')
+        )
+
         activities = (
             HamsterActivity.select(
                 HamsterActivity,
-                HamsterCategory,
-                fn.Count(HamsterFact.id).alias("facts_count")
+                HamsterCategory.id,
+                fn.COALESCE(HamsterCategory.name, 'None').alias("category_name"),
+                fn.COALESCE(facts_count_query.c.facts_count, 0).alias('facts_count'),
+                fn.COALESCE(mappings_count_query.c.mappings_count, 0).alias('mappings_count')
             )
             .join(HamsterCategory, JOIN.LEFT_OUTER)
             .switch(HamsterActivity)
-            .join(HamsterFact, JOIN.LEFT_OUTER)
+            .join(facts_count_query, JOIN.LEFT_OUTER, on=(HamsterActivity.id == facts_count_query.c.activity_id))
+            .switch(HamsterActivity)
+            .join(mappings_count_query, JOIN.LEFT_OUTER, on=(HamsterActivity.id == mappings_count_query.c.hamster_activity_id))
             .group_by(HamsterActivity)
         )
 
@@ -100,10 +120,11 @@ class ActivitiesScreen(ListScreen):
             [
                 [
                     activity.category_id,
-                    (activity.category.name if (activity.category_id != -1) else ""),
+                    activity.category_name,
                     activity.id,
                     activity.name,
                     activity.facts_count,
+                    activity.mappings_count,
                 ]
                 for activity in activities
             ]
@@ -115,7 +136,7 @@ class ActivitiesScreen(ListScreen):
         self.table = self.query_one(DataTable)
         self.table.cursor_type = "row"
         self.columns = self.table.add_columns(
-            "category id", "category", "activity id", "activity", "entries"
+            "category id", "category", "activity id", "activity", "entries", "mappings"
         )
         self.sort = (self.columns[1], self.columns[3])
         self._refresh()