There are a number of additional node properties which are ordinarily hidden from the default view. In most cases, you will not need to view or edit these properties. If, however, you do need to show hidden properties on a node, for whatever reason, click the Properties panel menu button and select Show Hidden Properties:
You can overwrite the default values as needed. Any edits that you make to these properties only apply to the selected instance of the node.
You can hide these properties again by clicking the menu button and selecting Show Hidden Properties to remove the selection. However, any property value that you have edited will always be visible.