diff --git a/resources/js/show/Show.ts b/resources/js/show/Show.ts
index 057a9d4c8..64ef8c05e 100644
--- a/resources/js/show/Show.ts
+++ b/resources/js/show/Show.ts
@@ -32,21 +32,17 @@ export class Show implements ShowData {
     }
 
     get formUrl(): string {
-        const multiformKey = this.config.multiformAttribute
-            ? this.data[this.config.multiformAttribute]
-            : null;
-
         if(route().params.instanceId) {
             return route('code16.sharp.form.edit', {
                 parentUri: getAppendableParentUri(),
-                entityKey: multiformKey ? `${this.entityKey}:${multiformKey}` : this.entityKey,
+                entityKey: this.entityKey,
                 instanceId: this.instanceId,
             });
         }
 
         return route('code16.sharp.form.create', {
             parentUri: getAppendableParentUri(),
-            entityKey: multiformKey ? `${this.entityKey}:${multiformKey}` : this.entityKey,
+            entityKey: this.entityKey,
         });
     }
 
diff --git a/resources/js/types/generated.d.ts b/resources/js/types/generated.d.ts
index 13e01f144..bb3391518 100644
--- a/resources/js/types/generated.d.ts
+++ b/resources/js/types/generated.d.ts
@@ -745,7 +745,6 @@ export type ShowConfigData = {
   deleteConfirmationText: string;
   isSingle: boolean;
   commands: ConfigCommandsData | null;
-  multiformAttribute: string | null;
   titleAttribute: string | null;
   breadcrumbAttribute: string | null;
   editButtonLabel: string | null;
diff --git a/src/Data/Show/ShowConfigData.php b/src/Data/Show/ShowConfigData.php
index 1bdbc1701..826d10be6 100644
--- a/src/Data/Show/ShowConfigData.php
+++ b/src/Data/Show/ShowConfigData.php
@@ -15,7 +15,6 @@ public function __construct(
         public string $deleteConfirmationText,
         public bool $isSingle = false,
         public ?ConfigCommandsData $commands = null,
-        public ?string $multiformAttribute = null,
         public ?string $titleAttribute = null,
         public ?string $breadcrumbAttribute = null,
         public ?string $editButtonLabel = null,
diff --git a/src/Http/Controllers/ShowController.php b/src/Http/Controllers/ShowController.php
index 5294ad6b5..d5444582c 100644
--- a/src/Http/Controllers/ShowController.php
+++ b/src/Http/Controllers/ShowController.php
@@ -33,7 +33,7 @@ public function show(string $parentUri, EntityKey $entityKey, string $instanceId
         abort_if($show instanceof SharpSingleShow, 404);
 
         $show->buildShowConfig();
-        
+
         $showData = $show->instance($instanceId);
         $payload = ShowData::from([
             'title' => $showData[$show->titleAttribute()] ?? $entity->getLabel($entityKey->subEntity()),
diff --git a/src/Show/SharpShow.php b/src/Show/SharpShow.php
index cebf10958..87dc9e3e2 100644
--- a/src/Show/SharpShow.php
+++ b/src/Show/SharpShow.php
@@ -24,7 +24,6 @@ abstract class SharpShow
     use WithCustomTransformers;
 
     protected ?ShowLayout $showLayout = null;
-    protected ?string $multiformAttribute = null;
     protected ?SharpShowTextField $pageTitleField = null;
     protected ?string $deleteConfirmationText = null;
     protected ?string $editButtonLabel = null;
@@ -51,7 +50,6 @@ final public function instance(mixed $id): array
                     ->merge(array_keys($this->transformers))
                     ->when($this->breadcrumbAttribute, fn ($collect) => $collect->push($this->breadcrumbAttribute))
                     ->when($this->entityStateAttribute, fn ($collect) => $collect->push($this->entityStateAttribute))
-                    ->when($this->multiformAttribute, fn ($collect) => $collect->push($this->multiformAttribute))
                     ->unique()
                     ->values()
                     ->toArray()
@@ -66,9 +64,6 @@ public function showConfig(mixed $instanceId, array $config = []): array
                 'deleteConfirmationText' => $this->deleteConfirmationText ?: trans('sharp::show.delete_confirmation_text'),
                 'editButtonLabel' => $this->editButtonLabel,
             ])
-            ->when($this->multiformAttribute, fn ($collection) => $collection->merge([
-                'multiformAttribute' => $this->multiformAttribute,
-            ]))
             ->when($this->pageTitleField, fn ($collection) => $collection->merge([
                 'titleAttribute' => $this->pageTitleField->key,
             ]))
@@ -81,10 +76,11 @@ public function showConfig(mixed $instanceId, array $config = []): array
         });
     }
 
+    /**
+     * @deprecated to be deleted, no more useful
+     */
     final protected function configureMultiformAttribute(string $attribute): self
     {
-        $this->multiformAttribute = $attribute;
-
         return $this;
     }
 
diff --git a/tests/Http/ShowControllerTest.php b/tests/Http/ShowControllerTest.php
index 6debd7535..21aea7750 100644
--- a/tests/Http/ShowControllerTest.php
+++ b/tests/Http/ShowControllerTest.php
@@ -9,7 +9,6 @@
 use Code16\Sharp\Show\Layout\ShowLayoutSection;
 use Code16\Sharp\Tests\Fixtures\Entities\PersonEntity;
 use Code16\Sharp\Tests\Fixtures\Entities\SinglePersonEntity;
-use Code16\Sharp\Tests\Fixtures\Sharp\PersonForm;
 use Code16\Sharp\Tests\Fixtures\Sharp\PersonShow;
 use Code16\Sharp\Tests\Fixtures\Sharp\PersonSingleShow;
 use Code16\Sharp\Utils\Entities\SharpEntityManager;
@@ -285,39 +284,6 @@ public function authorizeFor(mixed $instanceId): bool
         );
 });
 
-it('returns the valuated multiform attribute if configured', function () {
-    fakeShowFor('person', new class() extends PersonShow
-    {
-        public function buildShowConfig(): void
-        {
-            $this->configureMultiformAttribute('nobel');
-        }
-
-        public function find($id): array
-        {
-            return [
-                'id' => 1,
-                'name' => 'Marie Curie',
-                'nobel' => 'nobelized',
-            ];
-        }
-    });
-
-    app(SharpEntityManager::class)
-        ->entityFor('person')
-        ->setMultiforms([
-            'nobelized' => [PersonForm::class, 'With Nobel prize'],
-            'nope' => [PersonForm::class, 'No Nobel prize'],
-        ]);
-
-    $this->get('/sharp/s-list/person/s-show/person/1')
-        ->assertOk()
-        ->assertInertia(fn (Assert $page) => $page
-            ->where('show.config.multiformAttribute', 'nobel')
-            ->where('show.data.nobel', 'nobelized')
-        );
-});
-
 it('allows to configure a page alert', function () {
     fakeShowFor('person', new class() extends PersonShow
     {