diff --git a/public/userarea/import_xls2.php b/public/userarea/import_xls2.php
index dcf3202..5d98e16 100644
--- a/public/userarea/import_xls2.php
+++ b/public/userarea/import_xls2.php
@@ -337,8 +337,8 @@ error_log("Loaded template: " . print_r($template, true));
 <form id="selectRowsForm" action="import_insert.php" method="POST">
     <input type="hidden" name="template_id" value="${data.template_id}">
     <input type="hidden" name="columns" value="${encodeURIComponent(JSON.stringify(data.columns))}">
-    <input type="hidden" name="rows" value="${encodeURIComponent(JSON.stringify(data.rows))}">
-    <input type="hidden" name="excelrows" value="${encodeURIComponent(JSON.stringify(data.excel_data.map(r => r.excelrow)))}">
+    <input type="hidden" name="rows" id="selectedRowsData" value="">
+    <input type="hidden" name="excelrows" id="selectedExcelRowsData" value="">
     <input type="hidden" name="filename" value="${data.filename}">
 
     <!-- TOP BUTTON -->
@@ -389,6 +389,42 @@ error_log("Loaded template: " . print_r($template, true));
 `;
                 tableContainer.innerHTML = html;
 
+                const selectRowsForm = document.getElementById('selectRowsForm');
+
+                selectRowsForm.addEventListener('submit', function(e) {
+                    const checkedBoxes = Array.from(document.querySelectorAll('.row-checkbox:checked'));
+
+                    if (checkedBoxes.length === 0) {
+                        e.preventDefault();
+                        alert('Seleziona almeno una riga.');
+                        return;
+                    }
+
+                    const selectedRows = [];
+                    const selectedExcelRows = [];
+
+                    checkedBoxes.forEach((cb, newIndex) => {
+                        const originalIndex = parseInt(cb.value, 10);
+
+                        if (data.rows && data.rows[originalIndex]) {
+                            selectedRows.push(data.rows[originalIndex]);
+                        }
+
+                        if (data.excel_data && data.excel_data[originalIndex]) {
+                            selectedExcelRows.push(data.excel_data[originalIndex].excelrow);
+                        }
+
+                        // Reindex selected_rows so import_insert.php receives only the reduced rows array
+                        cb.value = newIndex;
+                    });
+
+                    document.getElementById('selectedRowsData').value =
+                        encodeURIComponent(JSON.stringify(selectedRows));
+
+                    document.getElementById('selectedExcelRowsData').value =
+                        encodeURIComponent(JSON.stringify(selectedExcelRows));
+                });
+
                 const topTableScrollbar = document.getElementById('topTableScrollbar');
                 const topTableScrollbarInner = document.getElementById('topTableScrollbarInner');
                 const mainTableContainer = document.getElementById('mainTableContainer');
diff --git a/public/userarea/trial.php b/public/userarea/trial.php
new file mode 100644
index 0000000..3f16307
--- /dev/null
+++ b/public/userarea/trial.php
@@ -0,0 +1,23 @@
+<?php
+require_once "class/VisualLimsApiClient.class.php";
+include('include/headscript.php');
+
+header("Content-Type: application/json; charset=utf-8");
+
+try {
+    $api = VisualLimsApiClient::getInstance();
+
+    $commessaId = 577818;
+
+    $endpoint = "CommessaWeb({$commessaId})?\$expand=CommesseCustomFields(\$expand=CustomField)";
+
+    $result = $api->get($endpoint);
+
+    echo json_encode($result, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+} catch (Exception $e) {
+    http_response_code(500);
+    echo json_encode([
+        "success" => false,
+        "error" => $e->getMessage()
+    ], JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
+}