Exploros is designed for face-to-face device-enabled instruction, where most physical classes are limited to 25-30 students in K12. Once classes are set up in accordance with these "real" classes, it is easy to transition to remote instruction for the same cohort of students. In this way, remote and physical classes are set up to correspond to the same set of students, and data for the class is kept organized, whether the class is meeting face-to-face, virtually, or a combination of both. By limiting class size, we can also design the interface around a known quantity of students.
You can create a larger class, but the limit for class size is 50 students.