Variable Manager

The Variable Manager is a very simple, easy to use feature that allows you to rename any variable from any node you have in your project that uses the variable.
You can also search for nodes, and see their variables.

To search for a node, simply click the left dropdown menu, and type in the name of the node you are looking for.

To rename a variable, simply search for the variable name, or click the name of the variable thats listed, click the dropdown button, enter the new name, then click "Replace All".