The following combination of rules is working for „rename by subfolder-name“.
Is it possible to rename only by sub-subfolder-name?
Create a rule and give it name “Watch Subfolders”.
(found here: https://beebom.com/how-use-hazel-rules/)
1. rule
Set the condition to: Kind – is – Folder
Set the action to: Run rules on folder contents
Put that rule at the top.
2. rule (by Mr-Noodle)
If (all) are met
If extension is mkv
If (all) are met for (the enclosing folder)
Name matches (•folder name)
Do
Rename (•folder name)(extension)
thx Speedy