XYplorer Beta Club

It is possible to assign a tag to a folder and to all files contained in it at the same time?

Thanks,
Gianluca

No, this is not built in but can be accomplished in various ways. For example, you can do a recursive search and tag all results in one go.
Add a "?" question mark after the folder path in the addressbar, and press enter. This will list all files and folders beneath that folder; select all with ctrl+a, then apply tags on them at once.
(If you've the topmost folder selected in the filelist, you have to type "<curitem>?" in the addressbar instead.)
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Don this can be a useful little builtin feature, recursive filtered tagging. Maybe a search filter in the tag infopane, that applies tags to matched results among selection.
I can see uses, like if I want to tag all mp3s under a band's folder with the band name, or tag all files in a git repo. But sometimes users will want to skip certain things, like tag only files ignoring their container folders, here an expressive search filter will be handy.

Thank you for the elegant and simple solution.