I have a project that has hundreds of reference planes. In dynamo I have selected all the reference planes in the project and filtered them out in to two lists. One that has the default “reference plane” name and another that has a list of reference planes that have been renamed for actual use. Now that I have these two list sorted, I am unsure of how to tell dynamo to select all the reference plane elements from one of those lists so that I can run the delete node.
See image attached of a test example I did.