diff --git a/_get_instance_details.php b/_get_instance_details.php
index cdf1440..68eed9c 100644
--- a/_get_instance_details.php
+++ b/_get_instance_details.php
@@ -62,47 +62,10 @@ $instance = $engine->getInstanceByDefId($person_id, $process_definition_id);
                 <strong><?= t('modal.process_completed', 'Proces zakończony.') ?></strong> 
                 Obecny status: <?= htmlspecialchars($instance['current_status']) ?>.
             </div>
-            <button id="startNewProcessBtn" class="btn btn-sm btn-primary" data-person-id="<?= $person_id ?>" data-process-id="<?= $process_definition_id ?>">
+            <button id="restartProcessBtn" class="btn btn-sm btn-primary" data-person-id="<?= $person_id ?>" data-process-code="<?= htmlspecialchars($process['code']) ?>" data-mode="create_new_run">
                 <?= t('modal.start_new_instance', 'Rozpocznij od nowa') ?>
             </button>
         </div>
-        <script>
-            document.getElementById('startNewProcessBtn')?.addEventListener('click', function() {
-                const personId = this.getAttribute('data-person-id');
-                const processId = this.getAttribute('data-process-id');
-                if (confirm('Czy na pewno chcesz rozpocząć nową instancję tego procesu? Dotychczasowa historia pozostanie, ale proces rozpocznie się od nowa.')) {
-                    fetch('_init_single_instance.php', {
-                        method: 'POST',
-                        headers: {
-                            'Content-Type': 'application/x-www-form-urlencoded',
-                        },
-                        body: 'person_id=' + personId + '&process_id=' + processId + '&force=1'
-                    })
-                    .then(response => response.json())
-                    .then(data => {
-                        if (data.success) {
-                            // Reload the modal content
-                            fetch('_get_instance_details.php?person_id=' + personId + '&process_id=' + processId)
-                                .then(response => response.text())
-                                .then(html => {
-                                    document.querySelector('#instanceModal .modal-body').innerHTML = html;
-                                    // Trigger custom event to re-attach handlers and update title
-                                    const event = new Event('instanceModalLoaded');
-                                    document.querySelector('#instanceModal .modal-body').dispatchEvent(event);
-                                    // Set a flag to refresh the matrix when the modal closes
-                                    window.matrixNeedsRefresh = true;
-                                });
-                        } else {
-                            alert('Błąd: ' + (data.error || 'Nieznany błąd'));
-                        }
-                    })
-                    .catch(error => {
-                        console.error('Error:', error);
-                        alert('Wystąpił błąd podczas uruchamiania nowej instancji.');
-                    });
-                }
-            });
-        </script>
     <?php endif; ?>
     <?php
     $definition = $process['definition_json'] ? json_decode($process['definition_json'], true) : null;
diff --git a/patch_index.py b/patch_index.py
index 9505e09..816506f 100644
--- a/patch_index.py
+++ b/patch_index.py
@@ -1,21 +1,22 @@
-import re
-
-with open('index.php', 'r') as f:
+with open('index.php', 'r', encoding='utf-8') as f:
     content = f.read()
 
-patch_code = """
-    instanceModalElement.addEventListener('hidden.bs.modal', function () {
-        if (window.matrixNeedsRefresh) {
-            window.location.reload();
-        }
-    });
-});
-</script>
-"""
+start_str = "    const instanceModalElement = document.getElementById('instanceModal');\n    if (instanceModalElement) {\n        instanceModalElement.addEventListener('click', function(event) {\n            const btn = event.target.closest('#startProcessBtn');\n            if (!btn) return;"
+end_str = "        });\n    }"
 
-content = content.replace("});\n</script>", patch_code)
-
-with open('index.php', 'w') as f:
-    f.write(content)
-
-print("Patched index.php")
+start_idx = content.find(start_str)
+if start_idx != -1:
+    end_idx = content.find(end_str, start_idx)
+    if end_idx != -1:
+        end_idx += len(end_str)
+        
+        replacement = "    const instanceModalElement = document.getElementById('instanceModal');\n    if (instanceModalElement) {\n        instanceModalElement.addEventListener('click', function(event) {\n            const startBtn = event.target.closest('#startProcessBtn');\n            const restartBtn = event.target.closest('#restartProcessBtn');\n            const btn = startBtn || restartBtn;\n            if (!btn) return;\n            \n            event.preventDefault();\n            event.stopPropagation();\n            \n            const isRestart = !!restartBtn;\n            \n            const personId = btn.dataset.personId;\n            const processId = btn.dataset.processId;\n            const processCode = btn.dataset.processCode;\n            \n            if (!personId) {\n                alert('Brak ID osoby');\n                return;\n            }\n            if (isRestart && !processCode) {\n                alert('Brak kodu procesu');\n                return;\n            }\n            if (!isRestart && !processId) {\n                alert('Brak ID procesu');\n                return;\n            }\n            \n            const originalText = btn.innerHTML;\n            btn.disabled = true;\n            btn.innerHTML = '<span class="spinner-border spinner-border-sm" role="status" aria-hidden="true"></span>...';\n            \n            const formData = new FormData();\n            formData.append('person_id', personId);\n            \n            if (isRestart) {\n                formData.append('process_code', processCode);\n                formData.append('mode', 'create_new_run');\n            } else {\n                formData.append('process_id', processId);\n            }\n            \n            if (instanceModalElement && processId) {\n                instanceModalElement.dataset.lastPersonId = personId;\n                instanceModalElement.dataset.lastProcessId = processId;\n            }\n            \n            fetch('_init_single_instance.php', {\n                method: 'POST',\n                body: formData\n            })\n            .then(async response => {\n                let data;\n                try {\n                    data = await response.json();\n                } catch (e) {\n                    throw new Error(`Błąd serwera (HTTP ${response.status}): Nieoczekiwany błąd (invalid JSON)`);\n                }\n                \n                if (!response.ok || !data.success) {\n                    let errMsg = data?.error?.message || data?.error || 'Nieznany błąd';\n                    if (data?.correlation_id) {\n                        errMsg += ` (ID błędu: ${data.correlation_id})`;\n                    }\n                    throw new Error(errMsg);\n                }\n                return data;\n            })\n            .then(data => {\n                const modalBody = instanceModalElement.querySelector('.modal-body');\n                modalBody.innerHTML = '<div class="text-center mt-4"><div class="spinner-border text-primary" role="status"></div><p class="mt-2">Ładowanie...</p></div>';\n                \n                const refreshProcessId = data.process_definition_id || processId || instanceModalElement.dataset.lastProcessId;\n                if (refreshProcessId) {\n                    instanceModalElement.dataset.lastProcessId = refreshProcessId;\n                }\n                \n                fetch(`_get_instance_details.php?person_id=${personId}&process_id=${refreshProcessId}`)\n                    .then(r => r.text())\n                    .then(html => {\n                        modalBody.innerHTML = html;\n                        window.matrixNeedsRefresh = true;\n                    });\n            })\n            .catch(err => {\n                console.error(err);\n                alert(err.message || 'Błąd sieci');\n                btn.disabled = false;\n                btn.innerHTML = originalText;\n            });\n        });\n    }"
+        
+        new_content = content[:start_idx] + replacement + content[end_idx:]
+        with open('index.php', 'w', encoding='utf-8') as f:
+            f.write(new_content)
+        print("Replaced index.php block successfully.")
+    else:
+        print("End string not found.")
+else:
+    print("Start string not found.")
diff --git a/patch_modal.py b/patch_modal.py
index 853538d..b6cfaab 100644
--- a/patch_modal.py
+++ b/patch_modal.py
@@ -1,73 +1,17 @@
 import re
 
-with open('_get_instance_details.php', 'r') as f:
+with open('_get_instance_details.php', 'r', encoding='utf-8') as f:
     content = f.read()
 
-patch_code = """<?php if ($instance): // INSTANCE EXISTS ?>
-    <?php
-    $instanceId = $instance['id'];
-    $isCompleted = in_array($instance['current_status'], ['completed', 'positive', 'negative', 'error']);
-    ?>
-    <?php if ($isCompleted): ?>
-        <div class="alert alert-info d-flex justify-content-between align-items-center">
-            <div>
-                <strong><?= t('modal.process_completed', 'Proces zakończony.') ?></strong> 
-                Obecny status: <?= htmlspecialchars($instance['current_status']) ?>.
-            </div>
-            <button id="startNewProcessBtn" class="btn btn-sm btn-primary" data-person-id="<?= $person_id ?>" data-process-id="<?= $process_definition_id ?>">
+pattern = r'<button id="startNewProcessBtn"([^>]+)>.*?</button>\s*</div>\s*<script>.*?</script>'
+replacement = r'''<button id="restartProcessBtn" class="btn btn-sm btn-primary" data-person-id="<?= $person_id ?>" data-process-code="<?= htmlspecialchars($process['code']) ?>" data-mode="create_new_run">
                 <?= t('modal.start_new_instance', 'Rozpocznij od nowa') ?>
             </button>
-        </div>
-        <script>
-            document.getElementById('startNewProcessBtn')?.addEventListener('click', function() {
-                const personId = this.getAttribute('data-person-id');
-                const processId = this.getAttribute('data-process-id');
-                if (confirm('Czy na pewno chcesz rozpocząć nową instancję tego procesu? Dotychczasowa historia pozostanie, ale proces rozpocznie się od nowa.')) {
-                    fetch('_init_single_instance.php', {
-                        method: 'POST',
-                        headers: {
-                            'Content-Type': 'application/x-www-form-urlencoded',
-                        },
-                        body: 'person_id=' + personId + '&process_id=' + processId + '&force=1'
-                    })
-                    .then(response => response.json())
-                    .then(data => {
-                        if (data.success) {
-                            // Reload the modal content
-                            fetch('_get_instance_details.php?person_id=' + personId + '&process_id=' + processId)
-                                .then(response => response.text())
-                                .then(html => {
-                                    document.getElementById('instanceModalBody').innerHTML = html;
-                                    // Trigger custom event to re-attach handlers and update title
-                                    const event = new Event('instanceModalLoaded');
-                                    document.getElementById('instanceModalBody').dispatchEvent(event);
-                                    // Set a flag to refresh the matrix when the modal closes
-                                    window.matrixNeedsRefresh = true;
-                                });
-                        } else {
-                            alert('Błąd: ' + (data.error || 'Nieznany błąd'));
-                        }
-                    })
-                    .catch(error => {
-                        console.error('Error:', error);
-                        alert('Wystąpił błąd podczas uruchamiania nowej instancji.');
-                    });
-                }
-            });
-        </script>
-    <?php endif; ?>
-    <?php
-    $definition = $process['definition_json'] ? json_decode($process['definition_json'], true) : null;"""
+        </div>'''
 
-content = content.replace(
-    """<?php if ($instance): // INSTANCE EXISTS ?>
-    <?php
-    $instanceId = $instance['id'];
-    $definition = $process['definition_json'] ? json_decode($process['definition_json'], true) : null;""",
-    patch_code
-)
+new_content, count = re.subn(pattern, replacement, content, flags=re.DOTALL)
 
-with open('_get_instance_details.php', 'w') as f:
-    f.write(content)
+with open('_get_instance_details.php', 'w', encoding='utf-8') as f:
+    f.write(new_content)
 
-print("Patched.")
+print(f"Replaced {count} instances.")
\ No newline at end of file