You can manage courses in Bitrix24 using the available actions a at the Lessons list (Services > e-Learning). All operations for creating and editing the courses can be performed from both public section when Edit mode is enabled, as well as from admin section.
Forms for creating courses, lessons, tests and
Be advised that you cannot change a question type in the question creation form, called from public section.
are identical for both public and admin sections. This chapter overviews operations in admin section.
With enabled Edit mode when editing in public section you can open any form by quick double-clicking at a page.
It's recommended to configure chapter/lesson edit forms, by deleting redundant fields and tabs and by changing locations of remaining fields to a necessary order.