Member App allows you to assign a different lecturer other than you to any of your courses. To assign to different lecturer to any of your course, first you need to create at least one new lecturer. For more information on how to do it see this article.
Find the course you'd like to assign a different lecturer to.
Click on three dots to open a secondary menu and select Settings.
You'll be redirected to the course settings page where you'll be able to select a different lecturer for your course.
Locate the lecturer dropdown and click on it to expand the list of available lecturers.
Select a new lecturer.
Click 'Save' to store your changes permanently in Member App platform.