No, we require absolutely zero code changes and there is no SDK to implement for our usability videos. A Usability Video test is a test type you can choose under our Basic and Pro plans. Based on your test-design and needs, you can assign tasks to users to explain when to take a Usability Videos during their journey through your product.
For Managed Plans, Usability Videos are included based on quoted pricing from BetaTesting as an option to collect feedback during mulit-day or multi-weeks tests.