With all due respect, I didn't download the db as the OP says their desire is not to actually schedule, but to view preferences and I simply want to offer a comment.
Can't really tell from what was revealed as to whether or not table setup is correct, but this will likely be a case where the form is based on a query and not a table.
So the advice is to forget about the form for now. If you can't build a query to draw in the data, then having the form first is of no help.
Since it's not clear (at least to me) if there are any one-to-many relationships involved, it's impossible to say if any subforms are required. If not, then everything can be on one form.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.