@Steinkrug, Michelle I believe you are referring to adding tags to file or folder for the Audio content creation feature in the studio.
The current UI does not support this feature, We will pass the feedback to our product team to check if this can be added to their backlog. Thanks!!
I have seen, that you can add tags do a project folder or file on MS Speech Studio, but unfortunately it is not possible to filter tags.
Or did I something wrong?