Users would to be able to select multiple services at the same time because they have doctors who have the same type of scheduling rule, but with different intervention times (services with the similar names).
When they search for an appointment according to the scheduling rule, they need to do multiple searches, because they can't click on multiple services at the same time, for example:
GAP / INITIAL CONSULTATION (10) 10 MIN
GAP / INITIAL CONSULTATION (20) 20 MIN
GAP / INITIAL CONSULTATION (30) 30 MIN
This update will considerably decrease the time their staff have to take to give an appointment.