Currently, on the Patron Items out and Bills screens, there are options under the Actions menu to print selected checkouts/bills. It sounds like what's needed is an additional option on these action menus to email selected checkouts/bills.
Also adding links to related bugs to generate periodic checkouts/bills emails using action triggers:
bug 1259315 - Wishlist: Notifications of items currently checked out
Currently, on the Patron Items out and Bills screens, there are options under the Actions menu to print selected checkouts/bills. It sounds like what's needed is an additional option on these action menus to email selected checkouts/bills.
Also adding links to related bugs to generate periodic checkouts/bills emails using action triggers:
bug 1259315 - Wishlist: Notifications of items currently checked out
bug 1496522 - Wishlist - Action Trigger for periodic billing statement