Hi Melro and welcome to Benefits and Work. On the assumption that you are new to the site, as well as the forum, this link should help you find your way around.
Welcome to Benefits and Work As you are an official appointee, in your position I would fill out the forms in the 3rd person (Jim cannot do such and such) rather than as if 'Jim' were speaking in person. At the end of the form is a section where you can explain why you did this.