diff --git a/rhino/aliases/cmd/smart_join.py b/rhino/aliases/cmd/smart_join.py
index 80d5db1..0f5b027 100644
--- a/rhino/aliases/cmd/smart_join.py
+++ b/rhino/aliases/cmd/smart_join.py
@@ -296,80 +296,12 @@ def _l_join_attempt(doc, sel):
         doc.EndUndoRecord(ur)
 
 
-def _layer_join_attempt(doc, wand_volumes):
-    """Layer-Level Join: Versuch BoolUnion zwischen 2 wand_volume Breps.
-    Wenn beide gleiches Material haben + sich beruehren oder ueberlappen
-    → mergen zu einem Brep. Behaelt UserStrings (= wand_id, material,
-    layer_idx) vom ersten Brep."""
-    if len(wand_volumes) != 2: return False
-    br0 = wand_volumes[0].Geometry
-    br1 = wand_volumes[1].Geometry
-    if not isinstance(br0, rg.Brep) or not isinstance(br1, rg.Brep):
-        return False
-    # Material-Check via UserStrings (= dossier_element_material)
-    mat0 = wand_volumes[0].Attributes.GetUserString(
-        "dossier_layer_material") or ""
-    mat1 = wand_volumes[1].Attributes.GetUserString(
-        "dossier_layer_material") or ""
-    if mat0 and mat1 and mat0 != mat1:
-        print("[SMART-JOIN] Layer-Join: Materialien unterschiedlich "
-              "({} vs {}), skip.".format(mat0, mat1))
-        return False
-    try:
-        union = rg.Brep.CreateBooleanUnion([br0, br1], 0.01)
-    except Exception as ex:
-        print("[SMART-JOIN] Layer-Join BoolUnion exc:", ex)
-        return False
-    if not union or len(union) == 0:
-        print("[SMART-JOIN] Layer-Join: Breps overlappen nicht "
-              "(BoolUnion returned None/empty)")
-        return False
-    if len(union) > 1:
-        print("[SMART-JOIN] Layer-Join: Breps overlappen nicht (BoolUnion"
-              " returned {} pieces, brauche 1)".format(len(union)))
-        return False
-    # 1 merged Brep
-    merged = union[0]
-    if not merged.IsValid:
-        print("[SMART-JOIN] Layer-Join: merged Brep invalid")
-        return False
-    try: merged.MergeCoplanarFaces(0.01)
-    except Exception: pass
-    ur = doc.BeginUndoRecord("DOSSIER Layer-Join")
-    try:
-        ok = doc.Objects.Replace(wand_volumes[0].Id, merged)
-        if ok:
-            doc.Objects.Delete(wand_volumes[1].Id, True)
-            return True
-        return False
-    finally:
-        doc.EndUndoRecord(ur)
-
-
 def _run():
     doc = Rhino.RhinoDoc.ActiveDoc
     if doc is None: return
     sel = list(doc.Objects.GetSelectedObjects(False, False))
     if not sel:
         Rhino.RhinoApp.RunScript("_Join", False); return
-    # Layer-Level Join: wenn GENAU 2 wand_volume Breps selektiert + keine
-    # wand_axis → versuche Layer-Join (= BoolUnion der zwei Layer-Breps).
-    _wand_vols = [o for o in sel
-                   if (o.Attributes.GetUserString("dossier_element_type")
-                        or "") == "wand_volume"]
-    _wand_axes = [o for o in sel
-                   if (o.Attributes.GetUserString("dossier_element_type")
-                        or "") == "wand_axis"]
-    if (len(_wand_vols) == 2 and len(_wand_axes) == 0
-            and len(sel) == 2):
-        print("[SMART-JOIN] Layer-Join attempt: 2 wand_volume Breps")
-        try:
-            if _layer_join_attempt(doc, _wand_vols):
-                doc.Views.Redraw()
-                print("[SMART-JOIN] Layer-Join: Breps zu einem gemerged")
-                return
-        except Exception as ex:
-            print("[SMART-JOIN] Layer-Join exc:", ex)
     # Info-Hint (T-Join unterstuetzt 1-Wand-Modus, L-Join braucht 2)
     n_wand_axes = sum(1 for o in sel
                        if (o.Attributes.GetUserString("dossier_element_type")
diff --git a/rhino/elemente.py b/rhino/elemente.py
index b54e8ec..989ca20 100644
--- a/rhino/elemente.py
+++ b/rhino/elemente.py
@@ -2778,11 +2778,6 @@ class _ClusterVolumeSelectHandler(Rhino.UI.MouseCallback):
             try:
                 if "Left" not in str(e.MouseButton): return
             except Exception: pass
-            # Alt-Click bypassed Cluster-Swap → user kann Layer-Breps
-            # direkt anwaehlen (= fuer Layer-Smart-Join)
-            try:
-                if bool(e.AltKeyDown): return
-            except Exception: pass
             view = e.View
             if view is None: return
             vp = view.ActiveViewport