diff --git a/backend/apps/api/v1/graphql.py b/backend/apps/api/v1/graphql.py
index 4c0795a42..a19cc12bf 100644
--- a/backend/apps/api/v1/graphql.py
+++ b/backend/apps/api/v1/graphql.py
@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 
-from graphene import UUID, Boolean, Float, List, ObjectType, String
+from graphene import UUID, Boolean, Float, List, Mutation, ObjectType, String
 from graphene_django import DjangoObjectType
 
-from backend.apps.api.v1.models import Table, TableNeighbor
+from backend.apps.api.v1.models import Column, ObservationLevel, Table, TableNeighbor
 from backend.apps.api.v1.sql_generator import OneBigTableQueryGenerator
 from backend.custom.graphql_base import PlainTextNode
 
@@ -39,6 +39,42 @@ def resolve_score(root, info):
         return root.score
 
 
+class ReorderTables(Mutation):
+    """Set display order for tables within a dataset.
+    ids: ordered list of table UUIDs (index 0 = first)."""
+
+    class Arguments:
+        ids = List(UUID, required=True)
+
+    ok = Boolean()
+    errors = List(String)
+
+    def mutate(root, info, ids):
+        if not info.context.user.is_staff:
+            return ReorderTables(ok=False, errors=["Permission denied"])
+        for i, table_id in enumerate(ids):
+            Table.objects.filter(pk=table_id).update(order=i)
+        return ReorderTables(ok=True, errors=[])
+
+
+class ReorderObservationLevels(Mutation):
+    """Set display order for observation levels within a table.
+    ids: ordered list of ObservationLevel UUIDs (index 0 = first)."""
+
+    class Arguments:
+        ids = List(UUID, required=True)
+
+    ok = Boolean()
+    errors = List(String)
+
+    def mutate(root, info, ids):
+        if not info.context.user.is_staff:
+            return ReorderObservationLevels(ok=False, errors=["Permission denied"])
+        for i, ol_id in enumerate(ids):
+            ObservationLevel.objects.filter(pk=ol_id).update(order=i)
+        return ReorderObservationLevels(ok=True, errors=[])
+
+
 class Query(ObjectType):
     get_table_neighbor = List(
         TableNeighborNode,
@@ -63,3 +99,27 @@ def resolve_get_table_one_big_table_query(
                 table, columns, include_table_translation
             )
             return sql_query
+
+
+class ReorderColumns(Mutation):
+    """Set display order for columns within a table.
+    ids: ordered list of Column UUIDs (index 0 = first)."""
+
+    class Arguments:
+        ids = List(UUID, required=True)
+
+    ok = Boolean()
+    errors = List(String)
+
+    def mutate(root, info, ids):
+        if not info.context.user.is_staff:
+            return ReorderColumns(ok=False, errors=["Permission denied"])
+        for i, col_id in enumerate(ids):
+            Column.objects.filter(pk=col_id).update(order=i)
+        return ReorderColumns(ok=True, errors=[])
+
+
+class APIMutation:
+    reorder_tables = ReorderTables.Field()
+    reorder_observation_levels = ReorderObservationLevels.Field()
+    reorder_columns = ReorderColumns.Field()
diff --git a/backend/apps/schema.py b/backend/apps/schema.py
index 1e833d65c..4ef832d4f 100644
--- a/backend/apps/schema.py
+++ b/backend/apps/schema.py
@@ -2,6 +2,7 @@
 from backend.apps.account.graphql import AccountMutation
 from backend.apps.account_payment.graphql import Mutation as PaymentMutation
 from backend.apps.account_payment.graphql import Query as PaymentQuery
+from backend.apps.api.v1.graphql import APIMutation
 from backend.apps.api.v1.graphql import Query as APIQuery
 from backend.apps.user_notifications.graphql import (
     DeactivateAllTableUpdateNotification,
@@ -16,6 +17,7 @@
     extra_queries=[APIQuery, PaymentQuery, UserNotificationQuery],
     extra_mutations=[
         AccountMutation,
+        APIMutation,
         PaymentMutation,
         TableUpdateNotification,
         DeactivateTableUpdateNotification,
diff --git a/backend/custom/graphql_auto.py b/backend/custom/graphql_auto.py
index 48462b434..7b021d4dc 100644
--- a/backend/custom/graphql_auto.py
+++ b/backend/custom/graphql_auto.py
@@ -429,6 +429,13 @@ def __init_subclass_with_meta__(
             _meta=_meta, input_fields=input_fields, **options
         )
 
+    @classmethod
+    def perform_mutate(cls, form, info):
+        obj = form.save(commit=False)
+        obj.save()
+        form.save_m2m()
+        return cls(errors=[], **{cls._meta.return_field_name: obj})
+
     @classmethod
     def get_form_kwargs(cls, root, info, **input):
         # Get file data
diff --git a/charts/basedosdados-api/templates/deployment.yaml b/charts/basedosdados-api/templates/deployment.yaml
index c4a05a7aa..f40c079f8 100644
--- a/charts/basedosdados-api/templates/deployment.yaml
+++ b/charts/basedosdados-api/templates/deployment.yaml
@@ -90,5 +90,3 @@ spec:
             items:
               - key: GCP_SA
                 path: gcp-sa.json
-              - key: CHATBOT_SA
-                path: chatbot-sa.json