Request: Adjust frequency of back-in-stock emails

At the moment, for us the back-in-stock alerts are sent out as little as possible. So whenever an item comes back in stock, the system checks every 3 hours and then sends out the exact number of notifications as there are items available.

The only options I can change it to are 2x or 3x the number in stock and have it check every 2 hours or every hour. So basically, all of those options are more frequent. But I actually find that quite often, especially since customers don’t check their email every 3 hours.

Would it be possible to change this to for exacmple every 8 hours instead of 1, 2 or 3? Or once a day at 8:30 in the morning?