Back Office Cashier Report - Add Shift Filter

Kao Thai Cuisine is asking for the ability to see their employees cashier reports by Shift. They often have employees that work both the lunch and the dinner shift as they are closed from 3-5pm between meals. If they look up the report in the back office it only pulls the entire day and there's no ability to break it into the separate shifts worked. 

Shift filter pulling the preentered Shifts within Business Hours and/or a generic time filter (for those that might not use shifts).