My indexing of a very small Angular2 project (really, not much more than the CLI seed) takes a long time indexing on my MacBook Pro. One recommendation in StackOverflow was to exclude files such as the node_modules library. I right-clicked on that in the Project window and selected Mark as Excluded. Was that the right thing to do? How to I return it to the original state if I have a problem? Also, is there anything else I should mark as excluded in order to speed up indexing?