Per customer requirement I have to copy restore points of a whole month to tape.
My Problem is that you can only create a new media set daily or once per week, but not once per month, which would waste much tape space.
According to the helpcenter there's a unsupported "monthly" type.
New media set will be created automatically if the last tape from the current media set is not in the library and tape job kicks in (for example such tape was exported). If your customer exports tape regularly - you could use 'Never' as an option.