Rayland
Welcome to the forum, you might want to have a look at the following FAQ which explain where everything is
Welcome to Benefits and Work Your claiming JSA at this time will not have an Impact on any MR or appeal that might make, at this time you are officially Fit for Work and JSA is the only benefit available to you at this time.
If you do claim JSA then once your claim has been accepted and not before, you can present a new Fit Note and be excused from any Job Search requirement for up to 13 weeks.
Gordon
Have a look at the ESA MR & Appeal guide for more information