Merge pull request #98965 from lahinson/osdocs-15271-hcp-single-agent-namespace

[OSDOCS-15271]: Adding note to HCP node pool procedure

Author: lahinson

modules/hcp-bm-add-np.adoc

@@ -9,6 +9,11 @@
 
 You can create node pools for a hosted cluster by specifying a name, number of replicas, and any additional information, such as an agent label selector.
 
+[NOTE]
+====
+Only a single agent namespace is supported for each hosted cluster. As a result, when you add a node pool to a hosted cluster, the node pool must be either from a single `InfraEnv` resource or from an `InfraEnv` resource that is in the same agent namespace.
+====
+
 .Procedure
 
 . To create a node pool, enter the following information: