diff --git a/borgmatic/actions/repo_create.py b/borgmatic/actions/repo_create.py
index af7b793d..49f4e6c0 100644
--- a/borgmatic/actions/repo_create.py
+++ b/borgmatic/actions/repo_create.py
@@ -41,9 +41,9 @@ def run_repo_create(
         encryption_mode,
         repo_create_arguments.source_repository,
         repo_create_arguments.copy_crypt_key,
-        repo_create_arguments.append_only,
-        repo_create_arguments.storage_quota,
-        repo_create_arguments.make_parent_dirs,
+        repo_create_arguments.append_only or repository.get('append_only'),
+        repo_create_arguments.storage_quota or repository.get('storage_quota'),
+        repo_create_arguments.make_parent_dirs or repository.get('make_parent_dirs'),
         local_path=local_path,
         remote_path=remote_path,
     )
diff --git a/borgmatic/commands/arguments.py b/borgmatic/commands/arguments.py
index 72980327..bf65c24b 100644
--- a/borgmatic/commands/arguments.py
+++ b/borgmatic/commands/arguments.py
@@ -303,6 +303,8 @@ DEFAULT_FALSE_FLAG_NAMES = {
     'check_i_know_what_i_am_doing',
     'postgresql_databases[0].no_owner',
     'healthchecks.create_slug',
+    'repositories[0].append_only',
+    'repositories[0].make_parent_dirs',
 }
 
 
@@ -401,6 +403,7 @@ def add_arguments_from_schema(arguments_group, schema, unparsed_arguments, names
         arguments_group.add_argument(
             full_flag_name,
             action='store_true',
+            default=None,
             help=description,
         )
     else:
diff --git a/borgmatic/config/arguments.py b/borgmatic/config/arguments.py
index 7a71c926..9aa83998 100644
--- a/borgmatic/config/arguments.py
+++ b/borgmatic/config/arguments.py
@@ -93,11 +93,16 @@ def convert_value_type(value, option_type):
     Given a string value and its schema type as a string, determine its logical type (string,
     boolean, integer, etc.), and return it converted to that type.
 
-    If the option type is a string, leave the value as a string so that special characters in it
-    don't get interpreted as YAML during conversion.
+    If the destination option type is a string, then leave the value as-is so that special
+    characters in it don't get interpreted as YAML during conversion.
+
+    And if the source value isn't a string, return it as-is.
 
     Raise ruamel.yaml.error.YAMLError if there's a parse issue with the YAML.
     '''
+    if not isinstance(value, str):
+        return value
+
     if option_type == 'string':
         return value
 
diff --git a/borgmatic/config/generate.py b/borgmatic/config/generate.py
index fbc29c81..c40d9f9b 100644
--- a/borgmatic/config/generate.py
+++ b/borgmatic/config/generate.py
@@ -22,6 +22,9 @@ def insert_newline_before_comment(config, field_name):
     )
 
 
+SCALAR_SCHEMA_TYPES = {'string', 'boolean', 'integer', 'number'}
+
+
 def schema_to_sample_configuration(schema, source_config=None, level=0, parent_is_sequence=False):
     '''
     Given a loaded configuration schema and a source configuration, generate and return sample
@@ -33,9 +36,6 @@ def schema_to_sample_configuration(schema, source_config=None, level=0, parent_i
     schema_type = schema.get('type')
     example = schema.get('example')
 
-    if example is not None:
-        return example
-
     if schema_type == 'array' or (isinstance(schema_type, list) and 'array' in schema_type):
         config = ruamel.yaml.comments.CommentedSeq(
             [
@@ -53,7 +53,7 @@ def schema_to_sample_configuration(schema, source_config=None, level=0, parent_i
             [
                 (
                     field_name,
-                    schema_to_sample_configuration(
+                    sub_schema.get('example') if field_name == 'source_directories' else schema_to_sample_configuration(
                         sub_schema, (source_config or {}).get(field_name, {}), level + 1
                     ),
                 )
@@ -64,6 +64,10 @@ def schema_to_sample_configuration(schema, source_config=None, level=0, parent_i
         add_comments_to_configuration_object(
             config, schema, source_config, indent=indent, skip_first=parent_is_sequence
         )
+    elif isinstance(schema_type, list) and all(element_schema_type in SCALAR_SCHEMA_TYPES for element_schema_type in schema_type):
+        return example
+    elif schema_type in SCALAR_SCHEMA_TYPES:
+        return example
     else:
         raise ValueError(f'Schema at level {level} is unsupported: {schema}')
 
diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index 909bc511..04051ece 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -53,6 +53,26 @@ properties:
                         available encryption modes, run "borg init --help" with
                         Borg 1 or "borg repo-create --help" with Borg 2.
                     example: repokey-blake2
+                append_only:
+                    type: boolean
+                    description: |
+                        Whether the repository should be created append-only,
+                        only used for the repo-create action. Defaults to false.
+                    example: false
+                storage_quota:
+                    type: string
+                    description: |
+                        The storage quota with which to create the repository,
+                        only used for the repo-create action. Defaults to no
+                        quota.
+                    example: 5G
+                make_parent_dirs:
+                    type: boolean
+                    description: |
+                        Whether any missing parent directories of the repository
+                        path should be created, only used for the repo-create
+                        action. Defaults to false.
+                    example: true
         description: |
             A required list of local or remote repositories with paths and
             optional labels (which can be used with the --repository flag to