diff --git a/README.md b/README.md
index 8055bcd..b21d7c8 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,7 @@ This repository contains an index (see below) of all the approved powers within
   - **interface ItemInterface** | [Details](src/05744dd3-4030-4cf8-8dda-a93ab809b473) | [Code](src/05744dd3-4030-4cf8-8dda-a93ab809b473/code.php) | [Settings](src/05744dd3-4030-4cf8-8dda-a93ab809b473/settings.json) | Super__05744dd3_4030_4cf8_8dda_a93ab809b473__Power
   - **interface ItemsInterface** | [Details](src/7212e4db-371f-4cfd-8122-32e9bb100d83) | [Code](src/7212e4db-371f-4cfd-8122-32e9bb100d83/code.php) | [Settings](src/7212e4db-371f-4cfd-8122-32e9bb100d83/settings.json) | Super__7212e4db_371f_4cfd_8122_32e9bb100d83__Power
   - **interface LoadInterface** | [Details](src/c548640c-a461-4424-9ac5-8dfb5ed06d8d) | [Code](src/c548640c-a461-4424-9ac5-8dfb5ed06d8d/code.php) | [Settings](src/c548640c-a461-4424-9ac5-8dfb5ed06d8d/settings.json) | Super__c548640c_a461_4424_9ac5_8dfb5ed06d8d__Power
+  - **interface MultiSubformInterface** | [Details](src/bb30f709-53d2-446a-ab3d-300fe6de0bc8) | [Code](src/bb30f709-53d2-446a-ab3d-300fe6de0bc8/code.php) | [Settings](src/bb30f709-53d2-446a-ab3d-300fe6de0bc8/settings.json) | Super__bb30f709_53d2_446a_ab3d_300fe6de0bc8__Power
   - **interface RemoteInterface** | [Details](src/51de80f2-2868-4c2c-8198-ef79349e9bd7) | [Code](src/51de80f2-2868-4c2c-8198-ef79349e9bd7/code.php) | [Settings](src/51de80f2-2868-4c2c-8198-ef79349e9bd7/settings.json) | Super__51de80f2_2868_4c2c_8198_ef79349e9bd7__Power
   - **interface SubformInterface** | [Details](src/34959721-415b-4b5e-8002-3d1fc84b3b2b) | [Code](src/34959721-415b-4b5e-8002-3d1fc84b3b2b/code.php) | [Settings](src/34959721-415b-4b5e-8002-3d1fc84b3b2b/settings.json) | Super__34959721_415b_4b5e_8002_3d1fc84b3b2b__Power
   - **interface UpdateInterface** | [Details](src/68a41264-64c0-441a-a3d8-8a5e557b1883) | [Code](src/68a41264-64c0-441a-a3d8-8a5e557b1883/code.php) | [Settings](src/68a41264-64c0-441a-a3d8-8a5e557b1883/settings.json) | Super__68a41264_64c0_441a_a3d8_8a5e557b1883__Power
diff --git a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/README.md b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/README.md
index 453044c..e8464e9 100644
--- a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/README.md
+++ b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/README.md
@@ -13,7 +13,7 @@
 @startuml
 class MultiSubform << (F,LightGreen) >> #RoyalBlue {
   # Subform $subform
-  + __construct(Items $subform)
+  + __construct(Subform $subform)
   + get(array $getMap) : ?array
   + set(array $items, array $setMap) : bool
   - getSubformData(array $map, ?array $coreData = null) : ?array
diff --git a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.php b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.php
index 9e70752..56b66a1 100644
--- a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.php
+++ b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.php
@@ -13,6 +13,7 @@ namespace VDM\Joomla\Data;
 
 
 use VDM\Joomla\Interfaces\Data\SubformInterface as Subform;
+use VDM\Joomla\Interfaces\Data\MultiSubformInterface;
 
 
 /**
@@ -20,7 +21,7 @@ use VDM\Joomla\Interfaces\Data\SubformInterface as Subform;
  * 
  * @since  3.2.2
  */
-final class MultiSubform
+final class MultiSubform implements MultiSubformInterface
 {
 	/**
 	 * The Subform Class.
@@ -37,7 +38,7 @@ final class MultiSubform
 	 *
 	 * @since 3.2.2
 	 */
-	public function __construct(Items $subform)
+	public function __construct(Subform $subform)
 	{
 		$this->subform = $subform;
 	}
diff --git a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.power b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.power
index de8a42b..7314d00 100644
--- a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.power
+++ b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/code.power
@@ -13,7 +13,7 @@
 	 *
 	 * @since 3.2.2
 	 */
-	public function __construct(Items $subform)
+	public function __construct(Subform $subform)
 	{
 		$this->subform = $subform;
 	}
diff --git a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/settings.json b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/settings.json
index 37b0877..338fd84 100644
--- a/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/settings.json
+++ b/src/e0198c3f-777a-4a0b-87b7-e6a198afc8f9/settings.json
@@ -3,7 +3,9 @@
     "add_licensing_template": "2",
     "extends": "",
     "guid": "e0198c3f-777a-4a0b-87b7-e6a198afc8f9",
-    "implements": null,
+    "implements": [
+        "bb30f709-53d2-446a-ab3d-300fe6de0bc8"
+    ],
     "load_selection": null,
     "name": "MultiSubform",
     "power_version": "1.0.0",
diff --git a/super-powers.json b/super-powers.json
index 5d3e211..e5d03ce 100644
--- a/super-powers.json
+++ b/super-powers.json
@@ -670,6 +670,17 @@
         "spk": "Super__bb29a833_73f7_4283_9327_bc7e41f0723b__Power",
         "guid": "bb29a833-73f7-4283-9327-bc7e41f0723b"
     },
+    "bb30f709-53d2-446a-ab3d-300fe6de0bc8": {
+        "name": "MultiSubformInterface",
+        "type": "interface",
+        "namespace": "VDM\\Joomla\\Interfaces\\Data",
+        "code": "src\/bb30f709-53d2-446a-ab3d-300fe6de0bc8\/code.php",
+        "power": "src\/bb30f709-53d2-446a-ab3d-300fe6de0bc8\/code.power",
+        "settings": "src\/bb30f709-53d2-446a-ab3d-300fe6de0bc8\/settings.json",
+        "path": "src\/bb30f709-53d2-446a-ab3d-300fe6de0bc8",
+        "spk": "Super__bb30f709_53d2_446a_ab3d_300fe6de0bc8__Power",
+        "guid": "bb30f709-53d2-446a-ab3d-300fe6de0bc8"
+    },
     "bfd1d6d5-56c1-4fe9-9fee-1c5910e1f5d8": {
         "name": "Table",
         "type": "final class",