diff --git a/public_html/assets/api/install.php b/public_html/assets/api/install.php
index 9087f0f..d579391 100644
--- a/public_html/assets/api/install.php
+++ b/public_html/assets/api/install.php
@@ -559,6 +559,9 @@ trait InstallAPI {
                 di.di_lng,
                 di.di_work_type,
                 di.di_status,
+                di.di_request_note,
+                di.di_cs_note,
+                di.di_work_note,
                 c.c_name AS di_customer_name,
                 SUM(
                 CASE
@@ -776,12 +779,19 @@ trait InstallAPI {
 
         $base_seq = 0;
 
-        if (!$has_existing && $has_trial) {
+        if ($has_existing) {
+            $seq_values = array_map(function($r){
+                return intval($r['di_order_seq'] ?? 0);
+            }, $existing_rows);
+
+            $min_seq = min(array_filter($seq_values));
+            $base_seq = $min_seq - 1;
+        } else if ($has_trial) {
             $qr_max = qry("
                 SELECT MAX(di_order_seq) AS max_seq
                 FROM tbl_daily_install
                 WHERE di_driver_uid = '{$di_driver_uid}'
-                AND di_install_date = '{$di_install_date}'
+                    AND di_install_date = '{$di_install_date}'
             ");
 
             $row_max = fetch_array($qr_max);
@@ -2197,6 +2207,7 @@ trait InstallAPI {
     public function daily_install_reorder() {
 
         $driver_uid = intval($_POST['driver_uid'] ?? 0);
+        $install_date = trim($_POST['install_date'] ?? '');
         $orderJson  = $_POST['order_list'] ?? '';
 
         $fail = function($stage, $msg, $extra = []) {
@@ -2218,21 +2229,6 @@ trait InstallAPI {
             $fail('decode', 'invalid order list');
         }
 
-        // driver의 install_date는 하나라고 가정 (화면 기준)
-        $qr = qry("
-            SELECT di_install_date
-            FROM tbl_daily_install
-            WHERE di_driver_uid = '{$driver_uid}'
-            LIMIT 1
-        ");
-        $row = mysqli_fetch_assoc($qr);
-
-        if(!$row){
-            $fail('select_date', 'no install data');
-        }
-
-        $install_date = $row['di_install_date'];
-
         qry("START TRANSACTION");
 
         foreach($orderList as $item){
@@ -2249,8 +2245,8 @@ trait InstallAPI {
                 UPDATE tbl_daily_install
                 SET di_order_seq = '{$seq}'
                 WHERE di_uid = '{$di_uid}'
-                AND di_driver_uid = '{$driver_uid}'
-                AND di_status = 'A'
+                    AND di_driver_uid = '{$driver_uid}'
+                    AND di_status = 'A'
                 LIMIT 1
             ";
 
diff --git a/public_html/assets/css/main.css b/public_html/assets/css/main.css
index b00cd72..62df5f0 100644
--- a/public_html/assets/css/main.css
+++ b/public_html/assets/css/main.css
@@ -2383,3 +2383,9 @@ tr.status-X {
       border-radius: 0 0 5px 5px;
   }
 }
+
+.tooltip-inner {
+  text-align: left;
+  max-width: 300px;
+  white-space: normal;
+}
diff --git a/public_html/doc/install_order.php b/public_html/doc/install_order.php
index e33e3a4..28fb7e5 100644
--- a/public_html/doc/install_order.php
+++ b/public_html/doc/install_order.php
@@ -421,6 +421,7 @@ let installData = <?=json_encode($installData)?>;
 let driverInitialMap = <?=json_encode($driverInitialMap)?>;
 let reorderModeDriverUid = null;
 let reorderSelectedRow = null; // currently selected for reorder
+const selectedDate = "<?= $selectedDate ?>";
 
 document.addEventListener("DOMContentLoaded", function () {
   renderList();
@@ -1697,6 +1698,7 @@ function saveDriverOrder(driverUid){
 
   api('daily_install_reorder', {
     driver_uid: driverUid,
+    install_date: selectedDate,
     order_list: JSON.stringify(orderList)
   }, (res) => {
 
diff --git a/public_html/doc/install_wait_list.php b/public_html/doc/install_wait_list.php
index 8432175..41d21c9 100644
--- a/public_html/doc/install_wait_list.php
+++ b/public_html/doc/install_wait_list.php
@@ -1285,6 +1285,16 @@ function formatPhone($phone) {
         <td class="text-center">${r.is_trial ? '' : `<button class="btn btn-sm btn-outline-danger btn-unassign" title="Remove from schedule"> <i class="bi bi-dash-circle"></i></button>`}</td>
       `;
 
+      const tooltipHtml = `
+        Req note: ${r.di_request_note || '-'}<br>
+        CS note: ${r.di_cs_note || '-'}<br>
+        Work note: ${r.di_work_note || '-'}
+      `;
+
+      tr.setAttribute('data-bs-toggle', 'tooltip');
+      tr.setAttribute('data-bs-html', 'true');
+      tr.setAttribute('title', tooltipHtml);
+
       tr.style.cursor = 'pointer';
       //tr.onclick = () => focusMapMarker(r.di_uid);
       tbody.appendChild(tr);
@@ -1293,6 +1303,12 @@ function formatPhone($phone) {
     bindCheckboxEvents();
     updateModifyButtonState();
     initInstallListSortable();
+    initTooltips();
+  }
+
+  function initTooltips() {
+    const tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'));
+    tooltipTriggerList.forEach(el => new bootstrap.Tooltip(el));
   }
 
   function safeFitBounds(bounds, tryCount = 0) {
@@ -1669,14 +1685,21 @@ function formatPhone($phone) {
   }
 
   function applyOrderSeqFromDom() {
-    const trs = document.querySelectorAll('#iwListBody tr');
+    const trs = Array.from(document.querySelectorAll('#iwListBody tr'));
+    if (!trs.length) return;
+
+    const seqValues = trs
+      .map(tr => parseInt(tr.dataset.orderSeq || '0', 10))
+      .filter(v => v > 0);
+
+    const startSeq = seqValues.length ? Math.min(...seqValues) : 1;
 
     trs.forEach((tr, idx) => {
-      const newSeq = idx + 1;
+      const newSeq = startSeq + idx;
       tr.dataset.orderSeq = String(newSeq);
 
       const tds = tr.querySelectorAll('td');
-      const tdSeq = tds[1]; // 0: checkbox, 1: sequence
+      const tdSeq = tds[1];
       if (tdSeq) tdSeq.textContent = newSeq;
     });