Using workflow engine (flow).
IF Filesystem tag is: Path to highest level folder for that tag and then set tag on that folder.
THEN tag with: Tag.
All files and folders underneath this will inherit that tag.
However you cannot use the workflow engine to automatically apply after files are created and edited. You has to either manually “touch” each file, move them or add the desired tags. Only with any new file after creating your workflow rule, will automatically apply tags according to workflow engine rules. This works even with multiple rules.
Thank you. This is very valuable info! It is a good trick to know. However for bigger installations with alot of files, you will refrain from doing a rescan unless you really has to, as it will run for quite some time. However I am gratefull for the info!