I am migrating sites from SharePoint On Premise to SharePoint Online/Ms Teams. We have not been using folders in our document libraries, instead we have relied on managed metadata. For one of the new sites, I created the site as an Ms Teams, and then I set up a number of channels, one for each sub-process (that we have metadata for). So I got the corresponding folders in my SharePoint library, one for each channel.
I would now like to have the files added to the folders tagged with the sub-process metadata for that folder automatically. But when I go to "Column default value setting" I can see none of the folders that exist in the library. I can just set default values for the document library.
How can I get the folders created by Ms Teams to display in "Column default value settings"?