diff --git a/backend/src/tools/kalkulator3d/routes.js b/backend/src/tools/kalkulator3d/routes.js
index 1466324..fc6eb1f 100644
--- a/backend/src/tools/kalkulator3d/routes.js
+++ b/backend/src/tools/kalkulator3d/routes.js
@@ -5,7 +5,27 @@ const { authenticate } = require('../../middleware/auth');
 const router = express.Router();
 
 router.get('/', authenticate, (req, res) => {
-  res.json(db.prepare('SELECT * FROM calculations WHERE user_id=? ORDER BY created_at DESC').all(req.user.id));
+  const uid = req.user.id;
+  const items = db.prepare('SELECT * FROM calculations WHERE user_id=? ORDER BY created_at DESC').all(uid);
+
+  // Prüfen welche Modelle Dateien haben: Unterordner von "3D-Modelle" mit Dateien
+  const baseFolder = db.prepare(
+    "SELECT id FROM folders WHERE user_id=? AND name='3D-Modelle' AND parent_id IS NULL"
+  ).get(uid);
+
+  let filesMap = {};
+  if (baseFolder) {
+    const rows = db.prepare(`
+      SELECT f.name, COUNT(fi.id) AS cnt
+      FROM folders f
+      LEFT JOIN files fi ON fi.folder_id = f.id
+      WHERE f.parent_id = ? AND f.user_id = ?
+      GROUP BY f.id
+    `).all(baseFolder.id, uid);
+    for (const r of rows) filesMap[r.name] = r.cnt > 0;
+  }
+
+  res.json(items.map(i => ({ ...i, has_files: !!filesMap[i.name] })));
 });
 
 router.post('/', authenticate, (req, res) => {
diff --git a/frontend/src/tools/bestellungen.jsx b/frontend/src/tools/bestellungen.jsx
index 50f1aec..13c1d0a 100644
--- a/frontend/src/tools/bestellungen.jsx
+++ b/frontend/src/tools/bestellungen.jsx
@@ -375,15 +375,25 @@ function BestellungDetail({ id, toast, onBack }) {
             <div style={{...S.card,marginBottom:10}}>
               <div style={S.head}>GESAMTSUMME</div>
               <div style={{display:'grid',gridTemplateColumns:'1fr 1fr 1fr',gap:8,marginBottom:totals.has_any_custom||order.custom_price?12:0}}>
-                {PREISE.map(p=>(
-                  <div key={p.key} style={{background:`${p.c}10`,border:`1px solid ${p.c}30`,borderRadius:9,padding:'10px 8px',textAlign:'center'}}>
-                    <div style={{fontSize:16,marginBottom:2}}>{p.emoji}</div>
-                    <div style={{color:'rgba(255,255,255,0.6)',fontSize:9,fontFamily:'monospace',marginBottom:3}}>{p.label}</div>
-                    <div style={{color:p.c,fontFamily:"'Space Mono',monospace",fontSize:16,fontWeight:700}}>
-                      {totals[p.key].toFixed(2)}€
+                {PREISE.map(p=>{
+                  const canSelect = !order.bezahlt && order.custom_price == null && !totals.has_any_custom;
+                  return (
+                    <div key={p.key}
+                      onClick={() => canSelect && api(`/tools/bestellungen/${id}`,{method:'PUT',body:{custom_price:totals[p.key]}}).then(u=>{setOrder(u);setForm(f=>({...f,custom_price:totals[p.key].toFixed(2)}));toast(`${p.label}-Preis übernommen`);}).catch(e=>toast(e.message,'error'))}
+                      title={canSelect ? `${p.label}-Preis als Festpreis übernehmen` : undefined}
+                      style={{background:`${p.c}10`,border:`1px solid ${p.c}30`,borderRadius:9,padding:'10px 8px',textAlign:'center',
+                        cursor:canSelect?'pointer':'default',
+                        transition:'background 0.15s',
+                        ...(canSelect?{':hover':{background:`${p.c}20`}}:{})}}>
+                      <div style={{fontSize:16,marginBottom:2}}>{p.emoji}</div>
+                      <div style={{color:'rgba(255,255,255,0.6)',fontSize:9,fontFamily:'monospace',marginBottom:3}}>{p.label}</div>
+                      <div style={{color:p.c,fontFamily:"'Space Mono',monospace",fontSize:16,fontWeight:700}}>
+                        {totals[p.key].toFixed(2)}€
+                      </div>
+                      {canSelect && <div style={{color:`${p.c}80`,fontSize:8,fontFamily:'monospace',marginTop:3}}>↑ übernehmen</div>}
                     </div>
-                  </div>
-                ))}
+                  );
+                })}
               </div>
               {totals.has_any_custom && (
                 <div style={{padding:'10px 14px',background:'rgba(255,255,255,0.04)',border:'1px solid rgba(255,255,255,0.1)',borderRadius:8,display:'flex',justifyContent:'space-between',alignItems:'center',marginBottom:8}}>
diff --git a/frontend/src/tools/kalkulator3d.jsx b/frontend/src/tools/kalkulator3d.jsx
index f05c070..b28724f 100644
--- a/frontend/src/tools/kalkulator3d.jsx
+++ b/frontend/src/tools/kalkulator3d.jsx
@@ -633,7 +633,15 @@ export function SavedList({ toast, mobile }) {
             <div style={{ flex:1, minWidth:0 }}>
               {/* Name + Datum */}
               <div style={{ display:'flex', justifyContent:'space-between', alignItems:'flex-start', marginBottom:4 }}>
-                <div style={{ color:'#fff', fontFamily:'monospace', fontSize:13, fontWeight:700 }}>{item.name}</div>
+                <div style={{ display:'flex', alignItems:'center', gap:6 }}>
+                  <div style={{ color:'#fff', fontFamily:'monospace', fontSize:13, fontWeight:700 }}>{item.name}</div>
+                  {item.has_files && (
+                    <span title="3D-Dateien vorhanden"
+                      style={{ fontSize:11, background:'rgba(78,205,196,0.12)', border:'1px solid rgba(78,205,196,0.25)',
+                        borderRadius:5, padding:'1px 5px', color:'#4ecdc4', fontFamily:'monospace', fontSize:9,
+                        letterSpacing:0.5, flexShrink:0 }}>🖨 Dateien</span>
+                  )}
+                </div>
                 <div style={{ color:'rgba(255,255,255,0.5)', fontFamily:'monospace', fontSize:10, flexShrink:0, marginLeft:8 }}>
                   {new Date(item.created_at).toLocaleDateString('de-DE')}
                 </div>