Schedule content delivery for specific times for different days

After producing a number of activity heat grids, I realised the times our content gets most engagement really varies across different days. When I try to schedule a Smart Campaign, I can only set up one time for my emails to be sent on different days. Wouldn't it be great if we could tailor these so that each day we send the email could have its own time/time frame in which its sent?

For example:

- Monday - send between 12:00 - 13:00

- Tuesday - send at 16:00

- Wednesday - send between 16:00 - 17:00