Each Presentation can have a dedicated assessment area on the website that needs a passcode to be entered for viewing. A contributor can use the passcode to look at their presentation as arranged by a website editor so there is opportunity for discussion with the editor and opportunity for possible changes to the arrangement. Realize the website editor may not be able to arrange your presentation precisely according to your desire.
Making A Presentation
You can use the Collated Presentation List on the Start menu to view the rules of presentations plus see the available categories.
Use the External Participants Presentation form on the CONTACT page if you want to go further.
Having gone further, look at the site rules on the Site Rules page.
You could engage in more communication when you receive a reply to your sent form. ( I might be able to communicate via a mobile phone if you prefer.)