diff --git a/src/admin/tainacan-admin-i18n.php b/src/admin/tainacan-admin-i18n.php
index e425db100..9137ca466 100644
--- a/src/admin/tainacan-admin-i18n.php
+++ b/src/admin/tainacan-admin-i18n.php
@@ -30,7 +30,6 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'terms'                                      => __( 'Terms', 'tainacan' ),
 	'mapping'                                    => __( 'Mapping', 'tainacan' ),
 	'importers'                                  => __( 'Importers', 'tainacan' ),
-    'metadata'                                   => __( 'metadata', 'tainacan' ),
 
 	// Actions
 	'edit'                                       => __( 'Edit', 'tainacan' ),
@@ -101,9 +100,9 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'title_collection_filters_edition'           => __( 'Edit Filters of', 'tainacan' ),
 	'title_importer_page'                        => __( 'Importer', 'tainacan' ),
 	'title_importers_page'                       => __( 'Importers', 'tainacan' ),
-    	'title_export_collection_page'               => __( 'Export Collection Page', 'tainacan' ),
-	'title_export_item_page'		     => __( 'Export Item Page', 'tainacan' ),
-	'title_export_page'			     => __( 'Export Page', 'tainacan' ),
+	'title_export_collection_page'               => __( 'Export Collection Page', 'tainacan' ),
+	'title_export_item_page'                     => __( 'Export Item Page', 'tainacan' ),
+	'title_export_page'                          => __( 'Export Page', 'tainacan' ),
 
 	// Labels (used mainly on Aria Labels and Inputs)
 	'label_clean'                                => __( 'Clear', 'tainacan' ),
@@ -133,8 +132,8 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'label_button_delete_header_image'           => __( 'Button Delete Header Image', 'tainacan' ),
 	'label_button_edit_thumb'                    => __( 'Button Edit Thumbnail', 'tainacan' ),
 	'label_button_edit_header_image'             => __( 'Button Edit Header Image', 'tainacan' ),
-	'label_button_edit_document'	             => __( 'Button Edit Document', 'tainacan' ),
-	'label_button_delete_document'	             => __( 'Button Delete Document', 'tainacan' ),
+	'label_button_edit_document'                 => __( 'Button Edit Document', 'tainacan' ),
+	'label_button_delete_document'               => __( 'Button Delete Document', 'tainacan' ),
 	'label_choose_thumb'                         => __( 'Choose Thumbnail', 'tainacan' ),
 	'label_button_delete_thumb'                  => __( 'Button Delete Thumbnail', 'tainacan' ),
 	'label_collections_per_page'                 => __( 'Collections per Page:', 'tainacan' ),
@@ -247,18 +246,17 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'label_remove_value'                         => __( 'Remove value', 'tainacan' ),
 	'label_create_new_page'                      => __( 'Create new page', 'tainacan' ),
 	'label_total_items'                          => __( 'Total items', 'tainacan' ),
-	'label_see_more'	                         => __( 'See more', 'tainacan' ),
-	'label_until'		                         => __( 'until', 'tainacan' ),
-	'label_visibility'	                         => __( 'Visibility', 'tainacan' ),
-	'label_discart'		                         => __( 'Discart', 'tainacan' ),
-	'label_save_as_draft'		                 => __( 'Save as draft', 'tainacan' ),
-	'label_update_draft'		                 => __( 'Update draft', 'tainacan' ),
-	'label_return_to_draft'		                 => __( 'Return to draft', 'tainacan' ),
-	'label_publish'				                 => __( 'Publish', 'tainacan' ),
-	'label_send_to_trash'		                 => __( 'Send to trash', 'tainacan' ),
-	'label_update'		                 		 => __( 'Update', 'tainacan' ),
-    'label_mapper_metadata'                      => __( 'Mapper Metadata', 'tainacan' ),
-    'label_add_more_mapper_metadata'             => __( 'Add more mapper\'s metadata', 'tainacan' ),
+	'label_see_more'                             => __( 'See more', 'tainacan' ),
+	'label_until'                                => __( 'until', 'tainacan' ),
+	'label_visibility'                           => __( 'Visibility', 'tainacan' ),
+	'label_discart'                              => __( 'Discart', 'tainacan' ),
+	'label_save_as_draft'                        => __( 'Save as draft', 'tainacan' ),
+	'label_update_draft'                         => __( 'Update draft', 'tainacan' ),
+	'label_return_to_draft'                      => __( 'Return to draft', 'tainacan' ),
+	'label_publish'                              => __( 'Publish', 'tainacan' ),
+	'label_update'                               => __( 'Update', 'tainacan' ),
+	'label_mapper_metadata'                      => __( 'Mapper Metadata', 'tainacan' ),
+	'label_add_more_mapper_metadata'             => __( 'Add more mapper\'s metadata', 'tainacan' ),
 
 	// Instructions. More complex sentences to guide user and placeholders
 	'instruction_delete_selected_collections'    => __( 'Delete selected collections', 'tainacan' ),
@@ -283,13 +281,12 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'instruction_search'                         => __( 'Search', 'tainacan' ),
 	'instruction_search_in_repository'           => __( 'Search in repository', 'tainacan' ),
 	'instruction_select_a_target_collection'     => __( 'Select a target collection', 'tainacan' ),
-    'instruction_select_a_metadatum'			 => __( 'Select a metadatum', 'tainacan' ),
-    'instruction_select_a_mapper'   			 => __( 'Select a mapper', 'tainacan' ),
+	'instruction_select_a_mapper'                => __( 'Select a mapper', 'tainacan' ),
 	'instruction_select_an_importer_type'        => __( 'Select an importer type from the options above:', 'tainacan' ),
 	'instruction_drop_file_or_click_to_upload'   => __( 'Drop your source file or click here to upload.', 'tainacan' ),
 	'instruction_select_metadatum_type'          => __( 'Select a metadatum type.', 'tainacan' ),
 	'instruction_configure_new_metadatum'        => __( 'Configure new metadatum.', 'tainacan' ),
-    'instruction_insert_mapper_metadatum_info'   => __( 'Insert the new mapper\'s metadatum info', 'tainacan' ),
+	'instruction_insert_mapper_metadatum_info'   => __( 'Insert the new mapper\'s metadatum info', 'tainacan' ),
 
 	// Info. Other feedback to user.
 	'info_search_results'                        => __( 'Search Results', 'tainacan' ),
@@ -368,12 +365,12 @@ return apply_filters( 'tainacan-admin-i18n', [
 	'info_updated_at'                            => __( 'Updated at', 'tainacan' ),
 	'info_editing_metadata_values'               => __( 'Editing metadata values...', 'tainacan' ),
 	'info_updating_metadata_values'              => __( 'Updating metadata values...', 'tainacan' ),
-	'info_type_to_add_items'			         => __( 'Add items...', 'tainacan' ),
-	'info_type_to_search_items'			         => __( 'Search items...', 'tainacan' ),
-	'info_type_to_add_terms'			         => __( 'Add terms...', 'tainacan' ),
-	'info_type_to_search_metadata'			     => __( 'Search metadata...', 'tainacan' ),
-	'info_type_to_add_metadata'			         => __( 'Add metadata...', 'tainacan' ),
-	'info_visibility_helper'			         => __( 'How the item will be available to visualization.', 'tainacan' ),
+	'info_type_to_add_items'                     => __( 'Add items...', 'tainacan' ),
+	'info_type_to_search_items'                  => __( 'Search items...', 'tainacan' ),
+	'info_type_to_add_terms'                     => __( 'Add terms...', 'tainacan' ),
+	'info_type_to_search_metadata'               => __( 'Search metadata...', 'tainacan' ),
+	'info_type_to_add_metadata'                  => __( 'Add metadata...', 'tainacan' ),
+	'info_visibility_helper'                     => __( 'How the item will be available to visualization.', 'tainacan' ),
 	'info_errors_in_form'                        => __( 'There are errors in the form', 'tainacan' ),
 
 	// Tainacan Metadatum Types
diff --git a/src/importer/class-tainacan-test-importer.php b/src/importer/class-tainacan-test-importer.php
index 0f4bcbfba..fcbba1f30 100644
--- a/src/importer/class-tainacan-test-importer.php
+++ b/src/importer/class-tainacan-test-importer.php
@@ -8,19 +8,6 @@
  * used to learn how to write an importer and to 
  * create test collections and items
  *
- * Example how to invoke it
- *
- * add_action('init', function() {
- * 	if ( isset($_GET['run_test_importer']) && $_GET['run_test_importer'] == 'go' ) {
- * 		global $Tainacan_Importer_Handler;
- * 		$test = new \Tainacan\Importer\Test_Importer();
- * 		$Tainacan_Importer_Handler->add_to_queue($test);
- * 	}
- * });
- *
- * Put this code somewhere and access any URL of your site with ?run_test_importer=go
- * 
- * TODO: check validate() methods and write log & abort importer in case of error.
  */
 
 namespace Tainacan\Importer;
@@ -70,8 +57,28 @@ class Test_Importer extends Importer {
 		$this->items_repo = \Tainacan\Repositories\Items::get_instance();
 		$this->metadata_repo = \Tainacan\Repositories\Metadata::get_instance();
 		
+		$this->remove_import_method('file');
+		$this->remove_import_method('url');
+		
+		$this->set_default_options([
+            'items_col_1' => 20,
+            'items_col_2' => 20
+		]);
+		
 	}
 	
+	public function options_form() {
+
+        $form = '<label class="label">' . __('Number of items in collection 1', 'tainacan') . '</label>';
+        $form .= '<input type="text" class="input" name="items_col_1" value="' . $this->get_option('items_col_1') . '" />';
+
+		$form .= '<label class="label">' . __('Number of items in collection 2', 'tainacan') . '</label>';
+        $form .= '<input type="text" class="input" name="items_col_2" value="' . $this->get_option('items_col_2') . '" />';
+
+        return $form;
+
+    }
+	
 	public function create_taxonomies() {
 		
 		$tax1 = new Entities\Taxonomy();
@@ -324,10 +331,10 @@ class Test_Importer extends Importer {
 	 * Here we are just returning random values
 	 */
 	public function get_col1_number_of_items() {
-		return 10;
+		return $this->get_option('items_col_1');
 	}
 	public function get_col2_number_of_items() {
-		return 20;
+		return $this->get_option('items_col_2');
 	}
 	public function get_col1_item($index) {