Great request. Example on my end: I have a folder with regular errands. I want tasks from certain files like "book hairdresser appointment every 3 months" to show up but I don't want every item in my grocery list to show up in Morgen.

Currently, I have moved my grocery list to a sub-folder called "exclude" which I have excluded from Morgen but this is a little cumbersome and clutters my Obsidian vault.

There is a directory exclusion in the Obsidian Tasks plugin. I wasn't sure if I was using it right but I don't see tasks from those excluded in Morgen.

What you are suggesting makes sense. It would be great to keep that exclusion or inclusion setting in the base Obsidian configuration.