Allow regular expression in Blocked Metadata

[hexchain]

Is your feature request related to a problem, or particular use cases? Please describe.
Use case: A radio show album I listen to has entries for the non-music parts, such as "Radio Name (135) - Intro". I'd like to ignore these entries.

Describe the solution you'd like
Allow using regular expression in Blocked Metadata list.

Additional info
Not sure if this can be achieved now with the help of pattern edit?