diff --git a/rhino/library.py b/rhino/library.py
index 71a3dd6..f17ad95 100644
--- a/rhino/library.py
+++ b/rhino/library.py
@@ -210,6 +210,91 @@ def add_item(item):
     return ok, load_manifest()
 
 
+def save_selection_to_asset(doc, target_name):
+    """Speichert die aktuelle Selection aus dem Doc als eigene .3dm-Datei
+    in library/assets/<target_name>.3dm. Returns relativer Pfad oder None.
+    Geometry wird relativ zum BoundingBox-Min platziert damit der Block-
+    Origin am Ursprung sitzt — sinnvoll fuer Symbol-Insert."""
+    if doc is None or not target_name: return None
+    try:
+        sel = list(doc.Objects.GetSelectedObjects(False, False))
+    except Exception:
+        sel = []
+    if not sel:
+        print("[LIBRARY] save_selection: keine Auswahl")
+        return None
+    if Rhino is None: return None
+    ensure_library()
+    assets_dir = os.path.join(library_root(), "assets")
+    if not os.path.isdir(assets_dir):
+        try: os.makedirs(assets_dir)
+        except Exception: pass
+    # Safe filename
+    safe = "".join(c if (c.isalnum() or c in "-_") else "_" for c in target_name)
+    if not safe.endswith(".3dm"): safe += ".3dm"
+    target = os.path.join(assets_dir, safe)
+    if os.path.isfile(target):
+        stem, ext = os.path.splitext(safe)
+        n = 2
+        while os.path.isfile(os.path.join(assets_dir, "{}_{}{}".format(stem, n, ext))):
+            n += 1
+        target = os.path.join(assets_dir, "{}_{}{}".format(stem, n, ext))
+    # File3dm aufbauen + Selection rein
+    try:
+        from Rhino.FileIO import File3dm, File3dmWriteOptions
+        import Rhino.Geometry as rg
+        # BoundingBox sammeln um geometrie an Ursprung zu verschieben
+        bbox = rg.BoundingBox.Empty
+        geoms = []
+        for o in sel:
+            g = o.Geometry
+            if g is None: continue
+            try:
+                bb = g.GetBoundingBox(True)
+                if bb.IsValid: bbox.Union(bb)
+            except Exception: pass
+            geoms.append((g, o.Attributes))
+        if not geoms:
+            return None
+        if not bbox.IsValid:
+            origin = rg.Point3d(0, 0, 0)
+        else:
+            origin = bbox.Min
+        offset = rg.Transform.Translation(-origin.X, -origin.Y, -origin.Z)
+        f3 = File3dm()
+        for g, a in geoms:
+            try:
+                g2 = g.Duplicate()
+                try: g2.Transform(offset)
+                except Exception: pass
+                # Generischer Add fuer alle GeometryBase
+                try: f3.Objects.Add(g2, a)
+                except Exception:
+                    # Fallback: typ-spezifisch
+                    if isinstance(g2, rg.Brep): f3.Objects.AddBrep(g2)
+                    elif isinstance(g2, rg.Curve): f3.Objects.AddCurve(g2)
+                    elif isinstance(g2, rg.Mesh): f3.Objects.AddMesh(g2)
+                    elif isinstance(g2, rg.Point): f3.Objects.AddPoint(g2.Location)
+            except Exception as ex:
+                print("[LIBRARY] save_selection add:", ex)
+        # Write
+        try:
+            opts = File3dmWriteOptions()
+            opts.Version = 8
+            f3.Write(target, opts)
+        except Exception:
+            try: f3.Write(target, 8)
+            except Exception as ex:
+                print("[LIBRARY] save_selection write:", ex)
+                return None
+        rel = os.path.relpath(target, library_root())
+        print("[LIBRARY] save_selection: {} objs → {}".format(len(geoms), rel))
+        return rel
+    except Exception as ex:
+        print("[LIBRARY] save_selection:", ex)
+        return None
+
+
 def copy_to_assets(src_path, target_name=None):
     """Kopiert eine Datei in library/assets/. target_name optional (sonst
     Original-Name). Returns relativer Pfad ('assets/foo.3dm') oder None."""
diff --git a/rhino/rhinopanel.py b/rhino/rhinopanel.py
index 2d575fc..2c8cb9c 100644
--- a/rhino/rhinopanel.py
+++ b/rhino/rhinopanel.py
@@ -1012,6 +1012,8 @@ class EbenenBridge(panel_base.BaseBridge):
                     self._update_library_item(p)
                 elif t == "DELETE_LIBRARY_ITEM":
                     self._delete_library_item(p)
+                elif t == "SAVE_SELECTION_AS_LIBRARY":
+                    self._save_selection_as_library(p)
             def _pick_texture(self, payload):
                 slot = payload.get("slot") or "diffuse"
                 try:
@@ -1288,6 +1290,71 @@ class EbenenBridge(panel_base.BaseBridge):
                     self._send_library()
                 except Exception as ex:
                     print("[PROJECT-SETTINGS] _delete_library_item:", ex)
+
+            def _save_selection_as_library(self, payload):
+                """Aktuelle Selection im Doc als Library-Item speichern.
+                payload: {variant: '2d'|'3d', targetId?: str, itemType?: str}.
+                Wenn targetId gesetzt: bestehendes Item updaten. Sonst:
+                Rhino-Prompt nach Name + neues Item anlegen."""
+                d = Rhino.RhinoDoc.ActiveDoc
+                if d is None: return
+                try:
+                    sel = list(d.Objects.GetSelectedObjects(False, False))
+                except Exception: sel = []
+                if not sel:
+                    self.send("LIBRARY_ERROR", {
+                        "msg": "Bitte erst Objekte in Rhino selektieren."})
+                    return
+                import library
+                variant = (payload.get("variant") or "2d").lower()
+                if variant not in ("2d", "3d"): variant = "2d"
+                target_id = (payload.get("targetId") or "").strip() or None
+                item_type = payload.get("itemType") or "object"
+                if item_type not in ("symbol", "object"): item_type = "object"
+                # Name: bei bestehendem Item den Item-Name nehmen, sonst
+                # Rhino-Prompt
+                name = ""
+                if target_id:
+                    m = library.load_manifest()
+                    for it in m.get("items", []):
+                        if it.get("id") == target_id:
+                            name = it.get("name") or "item"
+                            break
+                else:
+                    try:
+                        import Rhino.Input.Custom as ric
+                        from Rhino.Input import GetResult
+                        gs = ric.GetString()
+                        gs.SetCommandPrompt("Name fuer neues Library-Item")
+                        gs.AcceptNothing(True)
+                        if gs.Get() == GetResult.String:
+                            name = (gs.StringResult() or "").strip()
+                    except Exception as ex:
+                        print("[PROJECT-SETTINGS] save_selection prompt:", ex)
+                    if not name: name = "Neues_Item"
+                # Speichern
+                rel = library.save_selection_to_asset(d, name + "_" + variant)
+                if not rel:
+                    self.send("LIBRARY_ERROR", {
+                        "msg": "Konnte Selection nicht speichern."})
+                    return
+                if target_id:
+                    library.update_item(target_id, {
+                        ("files" + variant): [rel],
+                    })
+                else:
+                    import uuid as _uuid
+                    new_id = "obj-" + _uuid.uuid4().hex[:10]
+                    item = {
+                        "id":      new_id,
+                        "type":    item_type,
+                        "name":    name,
+                        "version": 1,
+                        "tags":    [],
+                        ("files" + variant): [rel],
+                    }
+                    library.add_item(item)
+                self._send_library()
         b = _ProjectSettingsBridge()
         bridge_holder["form"] = panel_base.open_satellite_window(
             "project_settings",
diff --git a/src/components/ProjectSettingsDialog.jsx b/src/components/ProjectSettingsDialog.jsx
index 023c611..56db889 100644
--- a/src/components/ProjectSettingsDialog.jsx
+++ b/src/components/ProjectSettingsDialog.jsx
@@ -6,6 +6,7 @@ import {
   renameLinetype, deleteLinetype, loadLinetypeDefaults, importLinetypeFile,
   renameHatch, deleteHatch, importHatchFile,
   listLibraryItems, addLibraryFile, updateLibraryItem, deleteLibraryItem,
+  saveSelectionAsLibrary,
 } from '../lib/rhinoBridge'
 
 /* Field — Stack-Layout fuer komplexe Inputs (mehrere Felder nebeneinander) */
@@ -1150,12 +1151,15 @@ export default function ProjectSettingsDialog({
                     )
                   })}
                 </div>
-                <div style={{ display: 'flex', gap: 4,
+                <div style={{ display: 'flex', flexDirection: 'column', gap: 4,
                                padding: '6px 8px',
                                borderTop: '1px solid var(--border-light)' }}>
-                  <BarToggle icon="add" label="Neues Objekt"
+                  <BarToggle icon="upload_file" label="Aus Datei"
                     onClick={() => addLibraryFile('2d', null, 'object')}
-                    title="Datei waehlen, kopiert in Library + neues Item" />
+                    title=".3dm-Datei waehlen → kopiert in Library + neues Item" />
+                  <BarToggle icon="add_to_photos" label="Aus Auswahl"
+                    onClick={() => saveSelectionAsLibrary('2d', null, 'object')}
+                    title="Selektierte Objekte in Rhino als Library-Item speichern" />
                 </div>
               </div>
 
@@ -1221,8 +1225,13 @@ export default function ProjectSettingsDialog({
                             {(it.files2d || []).join(', ')}
                           </div>
                         )}
-                        <BarToggle icon="upload_file" label="Datei wählen"
-                          onClick={() => addLibraryFile('2d', it.id, it.type)} />
+                        <div style={{ display: 'flex', gap: 4 }}>
+                          <BarToggle icon="upload_file" label="Datei wählen"
+                            onClick={() => addLibraryFile('2d', it.id, it.type)} />
+                          <BarToggle icon="add_to_photos" label="Aus Auswahl"
+                            onClick={() => saveSelectionAsLibrary('2d', it.id, it.type)}
+                            title="Selektierte Objekte als 2D-Variante speichern" />
+                        </div>
                       </DetailSection>
 
                       <DetailSection title="3D-Darstellung (Perspektive)">
@@ -1240,8 +1249,13 @@ export default function ProjectSettingsDialog({
                             {(it.files3d || []).join(', ')}
                           </div>
                         )}
-                        <BarToggle icon="upload_file" label="Datei wählen"
-                          onClick={() => addLibraryFile('3d', it.id, it.type)} />
+                        <div style={{ display: 'flex', gap: 4 }}>
+                          <BarToggle icon="upload_file" label="Datei wählen"
+                            onClick={() => addLibraryFile('3d', it.id, it.type)} />
+                          <BarToggle icon="add_to_photos" label="Aus Auswahl"
+                            onClick={() => saveSelectionAsLibrary('3d', it.id, it.type)}
+                            title="Selektierte Objekte als 3D-Variante speichern" />
+                        </div>
                       </DetailSection>
 
                       <DetailSection title="Tags">
diff --git a/src/lib/rhinoBridge.js b/src/lib/rhinoBridge.js
index 482a764..1c05241 100644
--- a/src/lib/rhinoBridge.js
+++ b/src/lib/rhinoBridge.js
@@ -217,6 +217,16 @@ export function updateLibraryItem(id, patch) {
   send('UPDATE_LIBRARY_ITEM', { id, patch })
 }
 export function deleteLibraryItem(id)        { send('DELETE_LIBRARY_ITEM', { id }) }
+// Aktuelle Rhino-Selection als Library-Item speichern. variant='2d'|'3d'.
+// Wenn targetId gesetzt: bestehendes Item aktualisieren. Sonst neues
+// Item (Backend fragt nach Namen via Rhino-Prompt).
+export function saveSelectionAsLibrary(variant, targetId, itemType) {
+  send('SAVE_SELECTION_AS_LIBRARY', {
+    variant: variant || '2d',
+    targetId: targetId || null,
+    itemType: itemType || 'object',
+  })
+}
 // Schnitt/Ansicht — interaktiver 2-Punkt-Pick im Rhino-Viewport. Erzeugt
 // eine neue Zeichnungsebene type=schnitt + 2D-Plan-Symbol + aktiviert sie.
 // opts: { cutAtLine: bool, depthBack: m, heightMin: m, heightMax: m, namePrefix }