diff --git a/masque/builder/pather_mixin.py b/masque/builder/pather_mixin.py
index 94ccae3..1655329 100644
--- a/masque/builder/pather_mixin.py
+++ b/masque/builder/pather_mixin.py
@@ -610,6 +610,14 @@ class PortPather:
         self.ports = [mm for mm in [name_map.get(pp, pp) for pp in self.ports] if mm is not None]
         return self
 
+    def add_ports(self, ports: Iterable[str]) -> Self:
+        ports = list(ports)
+        conflicts = set(ports) & set(self.ports)
+        if conflicts:
+            raise BuildError(f'ports {conflicts} already selected')
+        self.ports += ports
+        return self
+
     def add_port(self, port: str, index: int | None = None) -> Self:
         if port in self.ports:
             raise BuildError(f'{port=} already selected')