I don't think there's any easy way of doing it. You might end up needing to create Port Groups, and then run a Batch Operation on those port groups.
If you've got some consistency with the interface Alias configured for those ports connected to the APs - e.g. a description like "AP xxxx", then you can use that to help with searching for interfaces to add to the group.
It's definitely something that should be tidied up within IMC though.