Here’s how to copy a routine's app and site blocking rules from one profile to another.
Open up your parent app / dashboard.
Tap on your child's profile (the one you want to copy rules to).
Scroll down to Settings.
Tap Apps & Internet.
Tap the Rules next to the routine you'd like to edit (e.g. Bedtime, School).
Side scroll the quick actions at the top and tap Import Rules (or scroll down).
Select whether you want to copy the rules to another child or copy these rules to another routine within the same child profile:
Follow the on-screen instructions.
That's it! You've saved some time copying over rules from one kid to another or from one routine to another.