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The check box labelled Show advanced configuration , when checked, makes advanced options for data node and SQL node processes visible in the information pane. These options are set and used whether or not they are visible. You can also enable this behavior globally by checking Show advanced configuration options  under Settings  (see NDB Cluster Installer Settings and Help Menus). 

You can edit attributes for a single process by selecting that process from the tree, or for all processes of the same type in the cluster by selecting one of the Layer  folders. A per-process value set for a given attribute overrides any per-group setting for that attribute that would otherwise apply to the process in question. An example of such an information panel (for an SQL process) is shown here: 

