diff --git a/ApacheHTTPServer/package/UI/ui.yaml b/ApacheHTTPServer/package/UI/ui.yaml
index 60164737..7eca92a7 100644
--- a/ApacheHTTPServer/package/UI/ui.yaml
+++ b/ApacheHTTPServer/package/UI/ui.yaml
@@ -10,7 +10,14 @@
 #  License for the specific language governing permissions and limitations
 #  under the License.
 
-Version: 2
+Version: 2.1
+
+Templates:
+  customJoinNet:
+    - ?:
+        type: io.murano.resources.ExistingNeutronNetwork
+      internalNetworkName: $.instanceConfiguration.network[0]
+      internalSubnetworkName: $.instanceConfiguration.network[1]
 
 Application:
   ?:
@@ -26,6 +33,10 @@ Application:
     keyname: $.instanceConfiguration.keyPair
     availabilityZone: $.instanceConfiguration.availabilityZone
     assignFloatingIp: $.appConfiguration.assignFloatingIP
+    networks:
+      useEnvironmentNetwork: $.instanceConfiguration.network[0]=null
+      useFlatNetwork: false
+      customNetworks: switch($.instanceConfiguration.network[0], $=null=>list(), $!=null=>$customJoinNet)
 
 Forms:
   - appConfiguration:
@@ -98,6 +109,12 @@ Forms:
           label: Availability zone
           description: Select availability zone where application would be installed.
           required: false
+        - name: network
+          type: network
+          label: Network
+          description: Select a network to join. 'Auto' corresponds to a default environment's network.
+          required: false
+          murano_networks: translate
         - name: unitNamingPattern
           type: string
           label: Instance Naming Pattern