Course Presentation

Since screen reader software has mapped functions for left and right arrow, how does a screen reader user to use left and right arrow to navigate between the slides of a course presentation?

The course presentation even announces to JAWS user to "use left and right arrows" to move between slides when "canvas has focus." Unfortunately that does not seem to be working.

I thought perhaps forms mode, but thus far the experience has been inconsistent/inaccessible.

Any ideas/direction would be greatly appreciated.

I want to customize CKEditor on Course presentation.

In other words i am using h5p on moodle and when you select course presentation the presentation window appears then if you click text(T button) a text field with CKEditor appears i want you customize that CKEditor is it possible(like adding styles or adding a button to change text's styles) ?

I am a new user and would like to know if I need to purchase an account to create different content?