Added support for viewing Log Based Clusters. #7216

Co-authored-by: Akshay Joshi <akshay.joshi@enterprisedb.com>

docs/en_US/managing_cluster_objects.rst

@@ -18,4 +18,5 @@ database, right-click on the *Databases* node, and select *Create Database...*
    resource_group_dialog
    role_dialog
    tablespace_dialog
+   replica_nodes_dialog
    role_reassign_dialog

docs/en_US/replica_nodes_dialog.rst

@@ -0,0 +1,46 @@
+.. _replica_nodes_dialog:
+
+****************************
+`Replica Node Dialog`:index:
+****************************
+
+Use The *Replica Node* dialog to view a standby instance being replicated
+using log based streaming replication. Streaming replication allows a standby
+server to stay more up-to-date than is possible with file-based log shipping.
+The standby connects to the primary, which streams WAL records to the standby as
+they're generated, without waiting for the WAL file to be filled.
+
+The *Replica Node* dialog organizes the information through the following tabs:
+*General*, *Replication Slot*
+
+.. image:: images/replica_nodes_general.png
+    :alt: Replica Node dialog general tab
+    :align: center
+
+* The *PID* field is the process ID of a WAL sender process.
+* The *Username* field is the name of the user logged into this WAL sender process.
+* The *App Name* field is the name of the application that is connected to this WAL sender.
+* The *Client Address* field is the IP address of the client connected to this WAL sender.
+  If this field is null, it indicates that the client is connected via a Unix socket on the server machine.
+* The *Client Hostname* field is the host name of the connected client, as reported by a reverse DNS lookup
+  of client_addr.This field will only be non-null for IP connections, and only when log_hostname is enabled.
+* The *Client Port* field is the TCP port number that the client is using for communication with
+  this WAL sender, or -1 if a Unix socket is used.
+* The *State* field is the current WAL sender state.
+
+Click the *Replication Slot* tab to continue.
+
+.. image:: images/replica_nodes_replication.png
+    :alt: Replica Node dialog replication slot tab
+    :align: center
+
+* The *Slot Name* field is a unique, cluster-wide identifier for the replication slot.
+* The *Slot Type* field is the slot type - physical or logical
+* The *Active* field is True if this slot is currently actively being used.
+
+Other buttons:
+
+* Click the *Info* button (i) to access online help.
+* Click the *Save* button to save work.
+* Click the *Close* button to exit without saving work.
+* Click the *Reset* button to restore configuration parameters.