We  start off by looking at how to add modules and how to connect your API  keys.    Then, we look at similar components.    - Filters (Filter, Switch and If Nodes)    - Iterators (Split Out Node)    - Aggregator Node    - Merge Node    Learning these are vital in N8N because they completely unlock the  complexity and freedom of n8n. Otherwise, you should stick to Make.    Running multiple processes at one time is key to true automation in n8n, so  once you watch this video, play with the nodes yourself.