@mattybme, I originally wanted this feature too. Though I think in the EN system, it might end up being pretty clunk as you will have A TON of reminders attached to a particular note.
The way I’ve done it for a little while now is that each item on my to-do list is actually a link to another note in a Notebook called To-Dos. The advantage with this is that the specific note can now have a reminder, you can add details to it and other info that you need when you follow up to complete it. And, now that it’s a reminder, EN has a neat way to view all of your reminders based on Due Dates built in.
This ends up looking really clean and has been helpful for me!