diff --git a/custom_components/bahmcloud_store/core.py b/custom_components/bahmcloud_store/core.py
index d91f694..0afdb61 100644
--- a/custom_components/bahmcloud_store/core.py
+++ b/custom_components/bahmcloud_store/core.py
@@ -545,6 +545,130 @@ class BCSCore:
         await self.hass.async_add_executor_job(_restore)
         _LOGGER.info("BCS rollback applied: domain=%s from=%s", domain, backup_path)
 
+    async def list_repo_backups(self, repo_id: str) -> list[dict[str, Any]]:
+        """List available backup sets for an installed repository.
+
+        Returns a list of items sorted newest->oldest:
+        {"id": "YYYYMMDD_HHMMSS", "label": "YYYY-MM-DD HH:MM:SS", "complete": bool, "domains": [...] }
+
+        A backup set is considered *complete* if the timestamp exists for all
+        domains of the repository.
+        """
+        inst = self.get_installed(repo_id) or {}
+        domains = inst.get("domains") or []
+        if not isinstance(domains, list) or not domains:
+            return []
+
+        dom_list = [str(d) for d in domains if str(d).strip()]
+        if not dom_list:
+            return []
+
+        # Collect timestamps per domain.
+        per_domain: dict[str, list[str]] = {}
+        for d in dom_list:
+            per_domain[d] = await self._list_domain_backup_ids(d)
+
+        # Build a map id -> domains where it exists
+        id_map: dict[str, set[str]] = {}
+        for d, ids in per_domain.items():
+            for bid in ids:
+                id_map.setdefault(bid, set()).add(d)
+
+        all_domains = set(dom_list)
+        items: list[dict[str, Any]] = []
+        for bid, present in id_map.items():
+            complete = present == all_domains
+            label = self._format_backup_id(bid)
+            items.append({"id": bid, "label": label, "complete": complete, "domains": sorted(present)})
+
+        # Sort newest first by id (lexicographic works for timestamp format).
+        items.sort(key=lambda x: str(x.get("id") or ""), reverse=True)
+
+        # Keep newest 5 entries overall (UI expects up to 5).
+        return items[: self._backup_keep_per_domain]
+
+    async def restore_repo_backup(self, repo_id: str, backup_id: str) -> dict[str, Any]:
+        """Restore a previously created backup set for a repository."""
+        repo_id = str(repo_id or "").strip()
+        backup_id = str(backup_id or "").strip()
+        if not repo_id:
+            raise BCSInstallError("Missing repo_id")
+        if not backup_id:
+            raise BCSInstallError("Missing backup_id")
+
+        inst = self.get_installed(repo_id)
+        if not inst:
+            raise BCSInstallError("Repository is not installed")
+
+        domains = inst.get("domains") or []
+        if not isinstance(domains, list) or not domains:
+            raise BCSInstallError("No installed domains found")
+
+        dom_list = [str(d) for d in domains if str(d).strip()]
+        if not dom_list:
+            raise BCSInstallError("No installed domains found")
+
+        # Ensure the backup exists for all domains.
+        missing: list[str] = []
+        for d in dom_list:
+            p = self._backup_root / d / backup_id
+            if not p.exists() or not p.is_dir():
+                missing.append(d)
+        if missing:
+            raise BCSInstallError(f"Selected backup is not available for all domains: missing={missing}")
+
+        async with self._install_lock:
+            _LOGGER.info("BCS restore started: repo_id=%s backup_id=%s domains=%s", repo_id, backup_id, dom_list)
+
+            # Safety: create a new backup of current state before restoring.
+            for d in dom_list:
+                try:
+                    await self._backup_domain(d)
+                except Exception:
+                    _LOGGER.debug("BCS pre-restore backup failed for domain=%s", d, exc_info=True)
+
+            # Apply restore.
+            for d in dom_list:
+                await self._restore_domain_from_backup(d, self._backup_root / d / backup_id)
+
+            await self._refresh_installed_cache()
+            self._mark_restart_required()
+            self.signal_updated()
+
+            _LOGGER.info("BCS restore complete: repo_id=%s backup_id=%s", repo_id, backup_id)
+            return {"ok": True, "repo_id": repo_id, "backup_id": backup_id, "domains": dom_list, "restart_required": True}
+
+    async def _list_domain_backup_ids(self, domain: str) -> list[str]:
+        """List backup ids for a domain (newest->oldest)."""
+        domain = str(domain or "").strip()
+        if not domain:
+            return []
+
+        root = self._backup_root / domain
+
+        def _list() -> list[str]:
+            if not root.exists() or not root.is_dir():
+                return []
+            ids = [p.name for p in root.iterdir() if p.is_dir()]
+            ids.sort(reverse=True)
+            return ids
+
+        ids = await self.hass.async_add_executor_job(_list)
+        return ids[: self._backup_keep_per_domain]
+
+    @staticmethod
+    def _format_backup_id(backup_id: str) -> str:
+        """Format backup id YYYYMMDD_HHMMSS -> YYYY-MM-DD HH:MM:SS."""
+        s = str(backup_id or "").strip()
+        if len(s) != 15 or "_" not in s:
+            return s
+        try:
+            d, t = s.split("_", 1)
+            return f"{d[0:4]}-{d[4:6]}-{d[6:8]} {t[0:2]}:{t[2:4]}:{t[4:6]}"
+        except Exception:
+            return s
+
+
     async def _copy_domain_dir(self, src_domain_dir: Path, domain: str) -> None:
         dest_root = Path(self.hass.config.path("custom_components"))
         target = dest_root / domain