Hi @Nicola1
1. Workflow Groups are basically a collection of workflows you prefer to have open at the same time. So if you have 3 separate workflows you built for a project, and you want to open all 3 at once when you begin working, you can save those three as a workflow group so there's only 1 file to open. It's purely for organizing the workflows you interact with in Designer. I personally don't use this feature.
2. Workflow Dependencies are any file, data base, macro, or other external reference that the current workflow depends on to run. If you build a workflow that has a database query, and uses a macro, the Workflow Dependencies window would list those two items (with links to the tools that use those sources in case there are multiple references to the same source). Workflow dependencies are very important to verify the source of data and accuracy of your process, especially when workflows get larger with lots of external references.
3. I don't believe workflow groups are supported for scheduling, but I may be mistaken. Dependencies are crucial to understand before scheduling because all those dependencies will be necessary for the schedule to run successfully. What trips many new schedulers up is that when the schedule runs a workflow, the "Alteryx Service" is the user running the workflow and if it requires a query to a database with user authentication, that must be addressed.
Hope this helps!
