@agenciabrushup: Thank you for using Clean Business Pro theme.
Sorry, we don’t have the video tutorial for that yet. On the first one TOEFL, you have managed to use the Image Slider.
For the same in the second one IELTS too, go to Dashboard=> Appearance=> Customize=> Featured Slider and select Featured Image Slider in Select Slider Type dropdown. Then some option Featured Slide # will appear, put your desired Image and Content there and click Save & Publish
Hope this helps. Let me know if any problem.
Note: You have posted the support in the Catch Adaptive Pro theme category, please post in appropriate theme category.
Regards,
Mahesh