How To Enable Watershed Parental Controls?

Wow, first post in 10 years! I was a user of the original XMBC on a few modded Xboxs, and it’s been literally that amount of time since my last post (10 years and 1 day)– thanks for keeping my account and continuing to build a great service 😉

I’ve just returned to the fold and my household situation has changed over that period. I now have kids using Kodi, and I was wondering is there a way to setup the parental controls so that any recordings after the Watershed (in the UK broadcasters don’t show any content inappropriate to kids before 9pm) to have the parental controls enabled? E.g. Any recordings on BBC1 before 9pm they can watch on recordings, but any after are blocked by the pin?

At the moment I can only see a way to block the whole channel (live and recorded), whereas some channels I want my kids to be able to watch live and recordings before 9pm. The problem I’ve got at the moment, is that recordings we make on other devices via the DVBlink PVR addon are showing up in their profile and are watchable.

STBs from Sky, Virgin and BT tackle this by either putting PINs on any recordings made after 9pm or using the content rating from the guide.
Thanks in advance for any help.