You can use the graphic view to search for Nodes. The keyboard shortcut Ctrl-F opens a dialog where you can enter a NodeId or a browse name. If the namespace index of the node to search is not 0 you have to append the namespace index and a : to the NodeId (e.g. 1:1001).

When you are searching for a browse name, the namespace index will be ignored. In some cases there will be more than one node with the same browse name. In this case clicking Find will show the next node with this browse name.