I'm migrating a Lab Scheduling webpage for a professor.
In this site, a student was able to enter the times when they were available, giving the Professor a rough idea of when he should hold his labs.
I tried to use the Events module in DNN, but I don't think that it has the functionality I'm looking for.

I need to have a weekly template- Not so much a calendar, but rather a layout in which people can insert their schedules; With this module, we want students to be able to input when they are busy, and then, when looking at the weekly schedule layout, the professor can decide on which times would be best.

If at all possible, I would allow registered users to add their schedules, and the professor would be able to see how many time entries are overlapping a certain moment.

I hope not to need to write a custom module for this, so if there are any suggestions, I appreciate them in advance.