diff --git a/components/ILIAS/UI/src/Component/Modal/RoundTrip.php b/components/ILIAS/UI/src/Component/Modal/RoundTrip.php
index 2a1edefdd55d..dd74118ea094 100755
--- a/components/ILIAS/UI/src/Component/Modal/RoundTrip.php
+++ b/components/ILIAS/UI/src/Component/Modal/RoundTrip.php
@@ -21,12 +21,13 @@
 use ILIAS\UI\Component\Button;
 use ILIAS\UI\Component\Component;
 use ILIAS\UI\Component\ReplaceSignal;
+use ILIAS\UI\Component\Input\Container\Container;
 use ILIAS\UI\Component\Input\Container\Form\Standard;
 
 /**
  * @deprecated use {@see \ILIAS\UI\Component\Prompt\Prompt} instead
  */
-interface RoundTrip extends Modal, Standard
+interface RoundTrip extends Modal, Container
 {
     /**
      * Get the title of the modal
@@ -66,6 +67,21 @@ public function withActionButtons(array $buttons): RoundTrip;
      */
     public function withCancelButtonLabel(string $label): RoundTrip;
 
+    /**
+     * Get a modal like this with the provided submit button string.
+     */
+    public function withSubmitLabel(string $label): self;
+
+    /**
+     * Gets the submit label of the form.
+     */
+    public function getSubmitLabel(): ?string;
+
+    /**
+     * Get the URL this form posts its result to.
+     */
+    public function getPostURL(): string;
+
     /**
      * Get the signal to replace the content of this modal.
      */
diff --git a/components/ILIAS/UI/src/Implementation/Component/Dropzone/File/File.php b/components/ILIAS/UI/src/Implementation/Component/Dropzone/File/File.php
index c0fbf229129d..fd651e88ca4b 100755
--- a/components/ILIAS/UI/src/Implementation/Component/Dropzone/File/File.php
+++ b/components/ILIAS/UI/src/Implementation/Component/Dropzone/File/File.php
@@ -191,13 +191,6 @@ public function getReplaceSignal(): ReplaceSignal
         return $this->modal->getReplaceSignal();
     }
 
-    public function withAdditionalFormAction(string $action, string $label): static
-    {
-        $clone = clone $this;
-        $clone->modal = $clone->modal->withAdditionalFormAction($action, $label);
-        return $clone;
-    }
-
     public function getPostURL(): string
     {
         return $this->modal->getPostURL();
@@ -230,7 +223,7 @@ public function withRequest(ServerRequestInterface $request): self
     public function withInput(InputData $input_data): self
     {
         $clone = clone $this;
-        $clone->modal = $clone->modal->withInput($request);
+        $clone->modal = $clone->modal->withInput($input_data);
         return $clone;
     }
 
diff --git a/components/ILIAS/UI/src/Implementation/Component/Modal/RoundTrip.php b/components/ILIAS/UI/src/Implementation/Component/Modal/RoundTrip.php
index 235a0e27d266..004f5c1b9b9a 100755
--- a/components/ILIAS/UI/src/Implementation/Component/Modal/RoundTrip.php
+++ b/components/ILIAS/UI/src/Implementation/Component/Modal/RoundTrip.php
@@ -216,13 +216,6 @@ public function getError(): ?string
         return $this->form->getError();
     }
 
-    public function withAdditionalFormAction(string $action, string $label): static
-    {
-        $clone = clone $this;
-        $clone->form = $clone->form->withAdditionalFormAction($action, $label);
-        return $clone;
-    }
-
     /**
      * @inheritDoc
      */