IFS Developer Studio provides an “Application Feature” option when setting up a project. What does this mean when developing for IFS Cloud?

IFS Developer Studio provides an “Application Feature” option when setting up a project. What does this mean when developing for IFS Cloud?
I think the name in the documentation has changed but it likely has to do with integrations:
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.