Merge two folders with the same name
When a folder already exists, the clash sheet can merge the two instead of replacing one.
How to do it
- Copy or move a folder into a place that already has a folder with the same name.
- In the sheet that opens, choose Merge….
- A preview counts what would happen: new items, items with the same name, and identical items that are skipped.
- Pick what happens to items with the same name, then click Merge. Nothing changes before that, and ⌘Z undoes it.
More detail in the guide: File operations