Adding half ages beyond 4.5

Would love to have half year ages beyond 4.5 added to the class settings. This would help prevent new students, without prior trianing, from seeing higher level classes.

For example, one of our classes is just listed ages 5 to 5, so if a student is 5.5 and has never had dance, they do not see this class as an option. This is the type of student who shouldn't go into the 6 year old class without prior training.