diff --git a/src/ProFileGenerator.php b/src/ProFileGenerator.php
index 9294897..34112a2 100644
--- a/src/ProFileGenerator.php
+++ b/src/ProFileGenerator.php
@@ -19,6 +19,9 @@ use Rv\Data\Background;
 use Rv\Data\CollectionElementType;
 use Rv\Data\Color;
 use Rv\Data\Cue;
+use Rv\Data\Cue\CompletionActionType;
+use Rv\Data\Cue\CompletionTargetType;
+use Rv\Data\Effect;
 use Rv\Data\FileProperties;
 use Rv\Data\Graphics\EdgeInsets;
 use Rv\Data\Graphics\Element as GraphicsElement;
@@ -53,6 +56,7 @@ use Rv\Data\PresentationSlide;
 use Rv\Data\Slide;
 use Rv\Data\Slide\Element as SlideElement;
 use Rv\Data\Slide\Element\TextScroller;
+use Rv\Data\Transition;
 use Rv\Data\URL;
 use Rv\Data\URL\LocalRelativePath;
 use Rv\Data\URL\Platform as UrlPlatform;
@@ -66,6 +70,7 @@ final class ProFileGenerator
         array $groups,
         array $arrangements,
         array $ccli = [],
+        array $options = [],
     ): Song {
         $presentation = new Presentation();
         $presentation->setApplicationInfo(self::buildApplicationInfo());
@@ -141,6 +146,10 @@ final class ProFileGenerator
 
         self::applyCcliMetadata($presentation, $ccli);
 
+        if (($options['transition'] ?? null) === 'dissolve') {
+            $presentation->setTransition(self::buildDissolveTransition((float) ($options['transitionDuration'] ?? 1.0)));
+        }
+
         return new Song($presentation);
     }
 
@@ -150,8 +159,9 @@ final class ProFileGenerator
         array $groups,
         array $arrangements,
         array $ccli = [],
+        array $options = [],
     ): Song {
-        $song = self::generate($name, $groups, $arrangements, $ccli);
+        $song = self::generate($name, $groups, $arrangements, $ccli, $options);
         ProFileWriter::write($song, $filePath);
 
         return $song;
@@ -254,6 +264,16 @@ final class ProFileGenerator
             $cue->setName((string) $slideData['label']);
         }
 
+        if (isset($slideData['completion']) && is_array($slideData['completion'])) {
+            $c = $slideData['completion'];
+            $cue->setCompletionActionType(CompletionActionType::COMPLETION_ACTION_TYPE_AFTER_TIME);
+            $cue->setCompletionTime((float) ($c['time'] ?? 0.0));
+            $target = (($c['target'] ?? 'next') === 'first')
+                ? CompletionTargetType::COMPLETION_TARGET_TYPE_FIRST
+                : CompletionTargetType::COMPLETION_TARGET_TYPE_NEXT;
+            $cue->setCompletionTargetType($target);
+        }
+
         return $cue;
     }
 
@@ -607,6 +627,22 @@ final class ProFileGenerator
         return $timeline;
     }
 
+    private static function buildDissolveTransition(float $duration = 1.0): Transition
+    {
+        $effect = new Effect();
+        $effect->setUuid(self::newUuid());
+        $effect->setEnabled(true);
+        $effect->setName('Dissolve');
+        $effect->setRenderId('EC52A828-AD85-4602-B70C-1DEE7C904DB6');
+        $effect->setCategory('Dissolves');
+
+        $transition = new Transition();
+        $transition->setDuration($duration);
+        $transition->setEffect($effect);
+
+        return $transition;
+    }
+
     private static function applyCcliMetadata(Presentation $presentation, array $ccli): void
     {
         $metadata = new CCLI();
diff --git a/tests/ProFileGeneratorCompletionTest.php b/tests/ProFileGeneratorCompletionTest.php
new file mode 100644
index 0000000..f26a319
--- /dev/null
+++ b/tests/ProFileGeneratorCompletionTest.php
@@ -0,0 +1,131 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ProPresenter\Parser\Tests;
+
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+use ProPresenter\Parser\ProFileGenerator;
+
+class ProFileGeneratorCompletionTest extends TestCase
+{
+    private function baseGroups(array $slideData): array
+    {
+        return [
+            [
+                'name' => 'V1',
+                'color' => [0, 0, 0, 1],
+                'slides' => [$slideData],
+            ],
+        ];
+    }
+
+    private function baseArrangements(): array
+    {
+        return [
+            ['name' => 'normal', 'groupNames' => ['V1']],
+        ];
+    }
+
+    #[Test]
+    public function test_cue_completion_advances_to_next_after_time(): void
+    {
+        $song = ProFileGenerator::generate(
+            'Auto Advance',
+            $this->baseGroups([
+                'text' => 'Loop me',
+                'completion' => ['time' => 10.0, 'target' => 'next'],
+            ]),
+            $this->baseArrangements(),
+        );
+
+        $cue = $song->getPresentation()->getCues()[0];
+
+        // COMPLETION_ACTION_TYPE_AFTER_TIME = 3
+        $this->assertSame(3, $cue->getCompletionActionType());
+        $this->assertSame(10.0, $cue->getCompletionTime());
+        // COMPLETION_TARGET_TYPE_NEXT = 1
+        $this->assertSame(1, $cue->getCompletionTargetType());
+    }
+
+    #[Test]
+    public function test_cue_completion_loops_to_first(): void
+    {
+        $song = ProFileGenerator::generate(
+            'Loop To First',
+            $this->baseGroups([
+                'text' => 'Last slide',
+                'completion' => ['time' => 10.0, 'target' => 'first'],
+            ]),
+            $this->baseArrangements(),
+        );
+
+        $cue = $song->getPresentation()->getCues()[0];
+
+        $this->assertSame(3, $cue->getCompletionActionType());
+        $this->assertSame(10.0, $cue->getCompletionTime());
+        // COMPLETION_TARGET_TYPE_FIRST = 4
+        $this->assertSame(4, $cue->getCompletionTargetType());
+    }
+
+    #[Test]
+    public function test_dissolve_transition_applied_to_presentation(): void
+    {
+        $song = ProFileGenerator::generate(
+            'Dissolve Song',
+            $this->baseGroups(['text' => 'Fade']),
+            $this->baseArrangements(),
+            [],
+            ['transition' => 'dissolve'],
+        );
+
+        $presentation = $song->getPresentation();
+        $this->assertTrue($presentation->hasTransition());
+
+        $transition = $presentation->getTransition();
+        $this->assertSame(1.0, $transition->getDuration());
+
+        $effect = $transition->getEffect();
+        $this->assertNotNull($effect);
+        $this->assertTrue($effect->getEnabled());
+        $this->assertSame('Dissolve', $effect->getName());
+        $this->assertSame('EC52A828-AD85-4602-B70C-1DEE7C904DB6', $effect->getRenderId());
+        $this->assertSame('Dissolves', $effect->getCategory());
+    }
+
+    #[Test]
+    public function test_dissolve_transition_honors_custom_duration(): void
+    {
+        $song = ProFileGenerator::generate(
+            'Dissolve Slow',
+            $this->baseGroups(['text' => 'Fade']),
+            $this->baseArrangements(),
+            [],
+            ['transition' => 'dissolve', 'transitionDuration' => 2.5],
+        );
+
+        $this->assertSame(2.5, $song->getPresentation()->getTransition()->getDuration());
+    }
+
+    #[Test]
+    public function test_backward_compat_no_options_leaves_defaults(): void
+    {
+        $song = ProFileGenerator::generate(
+            'Plain Song',
+            $this->baseGroups(['text' => 'Nothing special']),
+            $this->baseArrangements(),
+        );
+
+        $presentation = $song->getPresentation();
+
+        // No transition configured
+        $this->assertFalse($presentation->hasTransition());
+
+        // Cue completion left at default (0 / 0 / 0.0)
+        $cue = $presentation->getCues()[0];
+        $this->assertSame(0, $cue->getCompletionActionType());
+        $this->assertSame(0, $cue->getCompletionTargetType());
+        $this->assertSame(0.0, $cue->getCompletionTime());
+    }
+}