diff --git a/kobrax_moonraker_bridge.py b/kobrax_moonraker_bridge.py
index f21813b..960a9a7 100644
--- a/kobrax_moonraker_bridge.py
+++ b/kobrax_moonraker_bridge.py
@@ -2333,27 +2333,8 @@ nav.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;
           </div>
         </div>
 
-        <div class="card" id="d-ace-dry-card" style="display:none">
-          <div class="card-title"><span>♨</span> <span id="d-card-ace-dry">ACE Trocknung</span></div>
-          <div style="font-size:12px;color:var(--txt2);margin-bottom:10px">
-            <span id="d-ace-dry-status">Status: Aus</span>
-          </div>
-          <div style="font-size:12px;color:var(--txt2);margin:-6px 0 10px 0">
-            <span id="d-ace-dry-humidity-label">Humidity:</span>
-            <span id="d-ace-dry-humidity">-</span>
-          </div>
-          <div style="font-size:12px;color:var(--txt2);margin:-6px 0 10px 0">
-            <span id="d-ace-dry-current-temp-label">Current Temp:</span>
-            <span id="d-ace-dry-current-temp">-</span>
-          </div>
-          <div style="display:flex;gap:8px;margin-bottom:10px">
-            <input type="number" class="temp-input" id="ace-dry-temp" min="30" max="80" step="1" value="55" style="flex:1" placeholder="Temp (°C)">
-            <input type="number" class="temp-input" id="ace-dry-duration" min="10" max="1440" step="10" value="240" style="flex:1" placeholder="Min">
-          </div>
-          <div class="ctrl-btns">
-            <button class="btn btn-sm btn-accent" id="ace-dry-start" onclick="aceDryStart()">▶ Start</button>
-            <button class="btn btn-sm btn-cancel" id="ace-dry-stop" onclick="aceDryStop()">■ Stop</button>
-          </div>
+        <div id="d-ace-dry-wrap" style="display:none">
+          <div id="d-ace-dry-grid" style="display:contents"></div>
         </div>
 
         <!-- AMS -->
@@ -2459,6 +2440,7 @@ var S={nozzle_temp:0,nozzle_target:0,bed_temp:0,bed_target:0,
   camera_url:'',fan_speed:0,print_speed_mode:2,light_on:false,light_brightness:80,
   ams_slots:[],filament_mode:'toolhead',ace_units:[],ace_drying:{status:0,target_temp:0,duration:0,remain_time:0,humidity:null,current_temp:null,units:[]}};
 var tempHistory={n:[],b:[]};
+var aceDryHistory={0:{t:[],h:[]},1:{t:[],h:[]},2:{t:[],h:[]},3:{t:[],h:[]}};
 var camOn=false;
 var currentStep=1;
 var currentPanel='dashboard';
@@ -2479,7 +2461,7 @@ var LANG_DE={
   card_progress:'Fortschritt',card_temps:'Temperaturen',card_light_fan:'Lüfter',card_speed:'Druckgeschwindigkeit',card_cam:'Kamera',lbl_elapsed:'Verstrichen:',lbl_remaining:'Restzeit:',lbl_slicer_time:'Slicer-Schätzung:',lbl_layers:'Layer',
   speed_silent:'🐢 Leise',speed_normal:'⚡ Normal',speed_sport:'🚀 Sport',
   lbl_light:'💡 Licht',lbl_feed:'Einziehen',lbl_unload:'Ausziehen',
-  card_ace_dry:'ACE Trocknung',ace_dry_status_off:'Status: Aus',ace_dry_status_on:'Status: Aktiv',ace_dry_status_remaining:'Rest',ace_dry_humidity:'Luftfeuchte',ace_dry_current_temp:'Aktuelle Temperatur',ace_dry_temp:'Temperatur (°C)',ace_dry_duration:'Dauer (Min)',ace_dry_start:'▶ Start',ace_dry_stop:'■ Stop',
+  card_ace_dry:'ACE Trocknung',ace_dry_dryer:'Trockner',ace_dry_status_off:'Status: Aus',ace_dry_status_on:'Status: Aktiv',ace_dry_status_remaining:'Rest',ace_dry_humidity:'Luftfeuchte',ace_dry_current_temp:'Aktuelle Temperatur',ace_dry_chart:'Verlauf (Temp/Feuchte)',ace_dry_temp:'Temperatur (°C)',ace_dry_duration:'Dauer (Min)',ace_dry_start:'▶ Start',ace_dry_stop:'■ Stop',
   cam_placeholder:'📷 Kamera nicht gestartet',btn_cam_start:'▶ Kamera',btn_cam_stop:'◼ Kamera',
   btn_pause:'⏸ Pause',btn_resume:'▶ Weiter',btn_cancel:'✕ Stopp',
   label_nozzle:'Nozzle',label_bed:'Bett',label_fan:'🌀 Lüfter',label_light:'💡 Licht',label_on_off:'Ein / Aus',label_speed:'Geschwindigkeit',
@@ -2542,7 +2524,7 @@ var LANG_EN={
   card_progress:'Progress',card_temps:'Temperatures',card_light_fan:'Fan',card_speed:'Print Speed',card_cam:'Camera',lbl_elapsed:'Elapsed:',lbl_remaining:'Remaining:',lbl_slicer_time:'Slicer estimate:',lbl_layers:'Layer',
   speed_silent:'🐢 Silent',speed_normal:'⚡ Normal',speed_sport:'🚀 Sport',
   lbl_light:'💡 Light',lbl_feed:'Load',lbl_unload:'Unload',
-  card_ace_dry:'ACE Drying',ace_dry_status_off:'Status: Off',ace_dry_status_on:'Status: Active',ace_dry_status_remaining:'Remaining',ace_dry_humidity:'Humidity',ace_dry_current_temp:'Current Temp',ace_dry_temp:'Temperature (°C)',ace_dry_duration:'Duration (min)',ace_dry_start:'▶ Start',ace_dry_stop:'■ Stop',
+  card_ace_dry:'ACE Drying',ace_dry_dryer:'Dryer',ace_dry_status_off:'Status: Off',ace_dry_status_on:'Status: Active',ace_dry_status_remaining:'Remaining',ace_dry_humidity:'Humidity',ace_dry_current_temp:'Current Temp',ace_dry_chart:'History (Temp/Humidity)',ace_dry_temp:'Temperature (°C)',ace_dry_duration:'Duration (min)',ace_dry_start:'▶ Start',ace_dry_stop:'■ Stop',
   cam_placeholder:'📷 Camera not started',btn_cam_start:'▶ Camera',btn_cam_stop:'◼ Camera',
   btn_pause:'⏸ Pause',btn_resume:'▶ Resume',btn_cancel:'✕ Stop',
   label_nozzle:'Nozzle',label_bed:'Bed',label_fan:'🌀 Fan',label_light:'💡 Light',label_on_off:'On / Off',label_speed:'Speed',
@@ -2668,6 +2650,7 @@ function toggleLang(){
   applyLang();
 }
 function applyLang(){
+  ensureAceDryCards();
   // Nav
   var nb=document.getElementById('nb-dashboard');if(nb)nb.querySelector('.nav-text').textContent=T.nav_dashboard;
   nb=document.getElementById('nb-console');if(nb)nb.querySelector('.nav-text').textContent=T.nav_console;
@@ -2697,7 +2680,6 @@ function applyLang(){
   setText('d-card-progress',T.card_progress);
   setText('d-card-temps',T.card_temps);
   setText('d-card-lightfan',T.card_light_fan);
-  setText('d-card-ace-dry',T.card_ace_dry);
   setText('d-card-speed',T.card_speed);
   setText('d-card-cam',T.card_cam);
   setText('d-card-ams',T.panel_ams_title);
@@ -2755,12 +2737,16 @@ function applyLang(){
   // AMS feed/unload
   document.querySelectorAll('.lbl-feed').forEach(e=>e.textContent=T.lbl_feed);
   document.querySelectorAll('.lbl-unload').forEach(e=>e.textContent=T.lbl_unload);
-  setText('ace-dry-start',T.ace_dry_start);
-  setText('ace-dry-stop',T.ace_dry_stop);
-  setText('d-ace-dry-humidity-label',(T.ace_dry_humidity||'Humidity')+':');
-  setText('d-ace-dry-current-temp-label',(T.ace_dry_current_temp||'Current Temp')+':');
-  var adTemp=document.getElementById('ace-dry-temp');if(adTemp)adTemp.setAttribute('placeholder',T.ace_dry_temp);
-  var adDur=document.getElementById('ace-dry-duration');if(adDur)adDur.setAttribute('placeholder',T.ace_dry_duration);
+  for(var i=0;i<4;i++){
+    setText('d-card-ace-dry-'+i,'ACE '+(i+1)+' - '+(T.ace_dry_dryer||'Dryer'));
+    setText('ace-dry-start-'+i,T.ace_dry_start);
+    setText('ace-dry-stop-'+i,T.ace_dry_stop);
+    setText('d-ace-dry-humidity-label-'+i,(T.ace_dry_humidity||'Humidity')+':');
+    setText('d-ace-dry-current-temp-label-'+i,(T.ace_dry_current_temp||'Current Temp')+':');
+    setText('d-ace-dry-chart-label-'+i,T.ace_dry_chart||'History (Temp/Humidity)');
+    var adTemp=document.getElementById('ace-dry-temp-'+i);if(adTemp)adTemp.setAttribute('placeholder',T.ace_dry_temp);
+    var adDur=document.getElementById('ace-dry-duration-'+i);if(adDur)adDur.setAttribute('placeholder',T.ace_dry_duration);
+  }
   // conn-btn text (nur wenn nicht im Übergangszustand)
   updateConnBtn();
   // Slot-Edit-Dialog
@@ -2776,6 +2762,34 @@ function applyLang(){
   setText('file-cancel-btn',T.file_cancel_btn);
 }
 function setText(id,txt){var el=document.getElementById(id);if(el)el.textContent=txt;}
+
+function ensureAceDryCards(){
+  var grid=document.getElementById('d-ace-dry-grid');
+  if(!grid||grid.getAttribute('data-init')==='1')return;
+  var html='';
+  for(var i=0;i<4;i++){
+    html+='<div class="card" id="d-ace-dry-card-'+i+'" style="display:none">'
+      +'<div class="card-title"><span>♨</span> <span id="d-card-ace-dry-'+i+'">ACE '+(i+1)+' - Dryer</span></div>'
+      +'<div style="font-size:12px;color:var(--txt2);margin-bottom:10px"><span id="d-ace-dry-status-'+i+'">Status: Off</span></div>'
+      +'<div style="font-size:12px;color:var(--txt2);margin:-6px 0 10px 0"><span id="d-ace-dry-humidity-label-'+i+'">Humidity:</span> <span id="d-ace-dry-humidity-'+i+'">-</span></div>'
+      +'<div style="font-size:12px;color:var(--txt2);margin:-6px 0 10px 0"><span id="d-ace-dry-current-temp-label-'+i+'">Current Temp:</span> <span id="d-ace-dry-current-temp-'+i+'">-</span></div>'
+      +'<div style="display:flex;gap:8px;margin-bottom:10px">'
+      +'<input type="number" class="temp-input" id="ace-dry-temp-'+i+'" min="30" max="80" step="1" value="55" style="flex:1" placeholder="Temp (°C)">'
+      +'<input type="number" class="temp-input" id="ace-dry-duration-'+i+'" min="10" max="1440" step="10" value="240" style="flex:1" placeholder="Min">'
+      +'</div>'
+      +'<div class="ctrl-btns">'
+      +'<button class="btn btn-sm btn-accent" id="ace-dry-start-'+i+'" onclick="aceDryStart('+i+')">▶ Start</button>'
+      +'<button class="btn btn-sm btn-cancel" id="ace-dry-stop-'+i+'" onclick="aceDryStop('+i+')">■ Stop</button>'
+      +'</div>'
+        +'<div style="margin-top:10px">'
+        +'<div style="font-size:10px;color:var(--txt2);margin-bottom:4px" id="d-ace-dry-chart-label-'+i+'">History (Temp/Humidity)</div>'
+        +'<canvas id="d-ace-dry-chart-'+i+'" width="600" height="90" style="width:100%;height:90px;background:var(--raised);border-radius:8px"></canvas>'
+        +'</div>'
+      +'</div>';
+  }
+  grid.innerHTML=html;
+  grid.setAttribute('data-init','1');
+}
 (function(){
   var l=localStorage.getItem('lang')||'de';
   currentLang=l;T=l==='de'?LANG_DE:LANG_EN;
@@ -2999,35 +3013,52 @@ function applyState(){
     amsTitle.textContent=modeTxt?(baseTitle+' - '+modeTxt):baseTitle;
   }
 
-  var acePresent=((s.ace_units||[]).length>0)
-    ||(s.filament_mode&&s.filament_mode!=='toolhead')
-    ||((s.ams_slots||[]).some(function(sl){return (sl.box_id||-1)>=0;}));
-  var aceCard=document.getElementById('d-ace-dry-card');
-  if(aceCard)aceCard.style.display=acePresent?'':'none';
-  var dry=s.ace_drying||{status:0,target_temp:0,duration:0,remain_time:0,humidity:null,current_temp:null};
-  var dryStatus=document.getElementById('d-ace-dry-status');
-  if(dryStatus){
-    if(dry.status){
-      var rem=(dry.remain_time||0);
-      dryStatus.textContent=(T.ace_dry_status_on||'Status: Active')+(rem>0?(' - '+(T.ace_dry_status_remaining||'Remaining')+': '+rem+' min'):'');
-    }else{
-      dryStatus.textContent=T.ace_dry_status_off||'Status: Off';
+  ensureAceDryCards();
+  var dry=s.ace_drying||{status:0,target_temp:0,duration:0,remain_time:0,humidity:null,current_temp:null,units:[]};
+  var units=(dry.units||[]);
+  var unitMap={};
+  units.forEach(function(u){var id=Number(u.id);if(id>=0&&id<=3)unitMap[id]=u;});
+  var detected=(s.ace_units||[]).filter(function(id){return id>=0&&id<=3;});
+  if(!detected.length){
+    Object.keys(unitMap).forEach(function(k){detected.push(Number(k));});
+  }
+  if(!detected.length){
+    (s.ams_slots||[]).forEach(function(sl){var id=Number(sl.box_id);if(id>=0&&id<=3&&detected.indexOf(id)<0)detected.push(id);});
+  }
+  detected.sort(function(a,b){return a-b;});
+  var aceWrap=document.getElementById('d-ace-dry-wrap');
+  if(aceWrap)aceWrap.style.display=detected.length?'contents':'none';
+  for(var i=0;i<4;i++){
+    var card=document.getElementById('d-ace-dry-card-'+i);
+    if(!card)continue;
+    var show=detected.indexOf(i)>=0;
+    card.style.display=show?'':'none';
+    if(!show)continue;
+    var ud=unitMap[i]||dry;
+    var st=document.getElementById('d-ace-dry-status-'+i);
+    if(st){
+      if(Number(ud.status||0)){
+        var rem=(Number(ud.remain_time)||0);
+        st.textContent=(T.ace_dry_status_on||'Status: Active')+(rem>0?(' - '+(T.ace_dry_status_remaining||'Remaining')+': '+rem+' min'):'' );
+      }else{
+        st.textContent=T.ace_dry_status_off||'Status: Off';
+      }
     }
+    var hh=document.getElementById('d-ace-dry-humidity-'+i);
+    if(hh){
+      var hv=(ud.humidity===null||ud.humidity===undefined||ud.humidity==='')?null:Number(ud.humidity);
+      hh.textContent=(hv===null||Number.isNaN(hv))?'-':(Math.round(hv)+'%');
+    }
+    var ht=document.getElementById('d-ace-dry-current-temp-'+i);
+    if(ht){
+      var ct=(ud.current_temp===null||ud.current_temp===undefined||ud.current_temp==='')?null:Number(ud.current_temp);
+      ht.textContent=(ct===null||Number.isNaN(ct))?'-':(ct.toFixed(1)+'°C');
+    }
+    var dryTemp=document.getElementById('ace-dry-temp-'+i);
+    if(dryTemp&&Number(ud.target_temp)>0&&String(dryTemp.value||'')==='55')dryTemp.value=Number(ud.target_temp);
+    var dryDur=document.getElementById('ace-dry-duration-'+i);
+    if(dryDur&&Number(ud.duration)>0&&String(dryDur.value||'')==='240')dryDur.value=Number(ud.duration);
   }
-  var dryHumidity=document.getElementById('d-ace-dry-humidity');
-  if(dryHumidity){
-    var hv=(dry.humidity===null||dry.humidity===undefined||dry.humidity==='')?null:Number(dry.humidity);
-    dryHumidity.textContent=(hv===null||Number.isNaN(hv))?'-':(Math.round(hv)+'%');
-  }
-  var dryCurrentTemp=document.getElementById('d-ace-dry-current-temp');
-  if(dryCurrentTemp){
-    var ct=(dry.current_temp===null||dry.current_temp===undefined||dry.current_temp==='')?null:Number(dry.current_temp);
-    dryCurrentTemp.textContent=(ct===null||Number.isNaN(ct))?'-':(ct.toFixed(1)+'°C');
-  }
-  var dryTemp=document.getElementById('ace-dry-temp');
-  if(dryTemp&&dry.target_temp>0&&String(dryTemp.value||'')==='55')dryTemp.value=dry.target_temp;
-  var dryDur=document.getElementById('ace-dry-duration');
-  if(dryDur&&dry.duration>0&&String(dryDur.value||'')==='240')dryDur.value=dry.duration;
 
   // AMS
   if(s.ams_slots&&s.ams_slots.length){
@@ -3127,6 +3158,25 @@ function updateHistory(){
   if(tempHistory.n.length>60)tempHistory.n.shift();
   if(tempHistory.b.length>60)tempHistory.b.shift();
   drawChart('d-chart',tempHistory,[{data:tempHistory.n,color:'#00c8ff',max:300},{data:tempHistory.b,color:'#ff6b35',max:120}]);
+
+  var dry=S.ace_drying||{};
+  var units=(dry.units||[]);
+  var unitMap={};
+  units.forEach(function(u){var id=Number(u.id);if(id>=0&&id<=3)unitMap[id]=u;});
+  for(var i=0;i<4;i++){
+    var u=unitMap[i];
+    var t=u&&u.current_temp!=null?Number(u.current_temp):null;
+    var h=u&&u.humidity!=null?Number(u.humidity):null;
+    if((t===null||Number.isNaN(t))&&(h===null||Number.isNaN(h)))continue;
+    if(t!==null&&!Number.isNaN(t))aceDryHistory[i].t.push(t);
+    if(h!==null&&!Number.isNaN(h))aceDryHistory[i].h.push(h);
+    if(aceDryHistory[i].t.length>60)aceDryHistory[i].t.shift();
+    if(aceDryHistory[i].h.length>60)aceDryHistory[i].h.shift();
+    drawChart('d-ace-dry-chart-'+i,aceDryHistory[i],[
+      {data:aceDryHistory[i].t,color:'#ff8c2f',max:100},
+      {data:aceDryHistory[i].h,color:'#3aa8ff',max:100}
+    ]);
+  }
 }
 function drawChart(id,_,series){
   var canvas=document.getElementById(id);if(!canvas)return;
@@ -3481,32 +3531,6 @@ function amsFeed(type,slotIndex){
     .catch(function(e){clog('AMS-Fehler: '+e,'msg-err');throw e;});
 }
 
-function aceDryStart(){
-  var t=parseInt(document.getElementById('ace-dry-temp').value||55);
-  var d=parseInt(document.getElementById('ace-dry-duration').value||240);
-  t=Math.max(30,Math.min(80,t));
-  d=Math.max(10,Math.min(1440,d));
-  return post('/api/ace/dry',{action:'start',target_temp:t,duration:d})
-    .then(function(r){return r.json();})
-    .then(function(r){
-      if(r.error){throw new Error(r.error);}
-      clog((T.card_ace_dry||'ACE Drying')+': '+(T.ace_dry_start||'start')+' ('+t+'°C, '+d+' min)','msg-ok');
-      poll();
-    })
-    .catch(function(e){clog('ACE-Fehler: '+e,'msg-err');});
-}
-
-function aceDryStop(){
-  return post('/api/ace/dry',{action:'stop'})
-    .then(function(r){return r.json();})
-    .then(function(r){
-      if(r.error){throw new Error(r.error);}
-      clog((T.card_ace_dry||'ACE Drying')+': '+(T.ace_dry_stop||'stop'),'msg-ok');
-      poll();
-    })
-    .catch(function(e){clog('ACE-Fehler: '+e,'msg-err');});
-}
-
 // ── Camera ──
 function camStart(){
   var img=document.getElementById('cam-img');
@@ -3539,22 +3563,47 @@ function camStart(){
     clog((T.log_error||'Fehler:')+' '+e,'msg-err');
   });
 }
+
 function camStop(){
-  post('/api/camera/stop',{}).then(function(){
-    var img=document.getElementById('cam-img');
-    img.src='';
-    img.style.display='none';
-    document.getElementById('cam-spinner').style.display='none';
-    document.getElementById('cam-placeholder').style.display='flex';
-    camOn=false;
-    document.getElementById('cam-toggle-btn').textContent=T.btn_cam_start||'▶ Kamera';
-    clog(T.log_cam_stop||'Kamera gestoppt','msg-ok');
-  }).catch(function(e){clog((T.log_error||'Fehler:')+' '+e,'msg-err')});
+  var img=document.getElementById('cam-img');
+  post('/api/camera/stop',{}).catch(function(){});
+  img.src='';
+  img.style.display='none';
+  document.getElementById('cam-placeholder').style.display='flex';
+  camOn=false;
+  document.getElementById('cam-toggle-btn').textContent=T.btn_cam_start||'▶ Kamera';
+  clog((T.log_cam_stop||'Kamera gestoppt'),'msg-ok');
 }
+
+function aceDryStart(aceId){
+  aceId=(typeof aceId==='number'&&aceId>=0)?aceId:0;
+  var t=parseInt((document.getElementById('ace-dry-temp-'+aceId)||{}).value||55);
+  var d=parseInt((document.getElementById('ace-dry-duration-'+aceId)||{}).value||240);
+  t=Math.max(30,Math.min(80,t));
+  d=Math.max(10,Math.min(1440,d));
+  return post('/api/ace/dry',{action:'start',target_temp:t,duration:d,ace_id:aceId})
+    .then(function(r){return r.json();})
+    .then(function(r){
+      if(r.error){throw new Error(r.error);}
+      clog('ACE '+(aceId+1)+' - '+(T.ace_dry_dryer||'Dryer')+': '+(T.ace_dry_start||'start')+' ('+t+'°C, '+d+' min)','msg-ok');
+      poll();
+    })
+    .catch(function(e){clog('ACE-Fehler: '+e,'msg-err');});
+}
+
 function toggleCam(){if(camOn)camStop();else camStart()}
 
-// ── GCode Store ──
-var storeFiles=[];
+function aceDryStop(aceId){
+  aceId=(typeof aceId==='number'&&aceId>=0)?aceId:0;
+  return post('/api/ace/dry',{action:'stop',ace_id:aceId})
+    .then(function(r){return r.json();})
+    .then(function(r){
+      if(r.error){throw new Error(r.error);}
+      clog('ACE '+(aceId+1)+' - '+(T.ace_dry_dryer||'Dryer')+': '+(T.ace_dry_stop||'stop'),'msg-ok');
+      poll();
+    })
+    .catch(function(e){clog('ACE-Fehler: '+e,'msg-err');});
+}
 
 function loadStore(){
   fetch(_apiUrl('/kx/files')).then(function(r){return r.json()}).then(function(d){
@@ -4299,6 +4348,16 @@ function loadPrinterTab(){
         if not ace_ids:
             return web.json_response({"error": "ACE not detected"}, status=400)
 
+        ace_id_raw = body.get("ace_id", None)
+        if ace_id_raw is not None:
+          try:
+            ace_id = int(ace_id_raw)
+          except Exception:
+            return web.json_response({"error": "ace_id must be an integer"}, status=400)
+          if ace_id not in ace_ids:
+            return web.json_response({"error": f"ACE {ace_id + 1} not detected"}, status=400)
+          ace_ids = [ace_id]
+
         if action == "start":
             target_temp = int(body.get("target_temp", 45))
             duration = int(body.get("duration", 240))