I will submit an enhancement request for you for item #1.
As for #2: To add a node to NCM that is already in Orion navigate to the NCM summary page and click on the "Manage NCM Nodes" button on the node list resource. It will take you to a page titled "Add or Manage Node" that allows you to choose which nodes are "Licensed/Managed" by NCM.
Hope this helps,
Feature request in bullet #1 is being tracked internally as 95976.