Ability to block more than 3 time slots at a time

I am using this service for a mobile tech/grooming business. I have a client with 4 dogs. I would love the ability to select all 4 dogs at once, and schedule them each for a nail trim. Currently, I can schedule 3 time blocks at one time, but can’t seem to do more than that. Is it possible to either select the service to be “per animal” or block off more than 3 time slots? This would make my schedule much more convenient!