What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If I understood you correctly you want to remove options 1,2 and 3 from Friday, Saturday, Sunday.
You can do that inside of your form builder by selecting those fields and then click on Options and simply remove those options.
When you do that there will be only one check box with no label inside of your form.
Here is a demo form I made form your form with applied changes:
You can clone it if you want to inspect changes I made.
Hope this will help. Let us know if you need further assistance.