Compare and trigger migration from source site in Redwood migration center

Summary:

I am trying to compare/migrate specific components from source site using Redwood migration center.

I couldn't locate this option.

Do I need to enable some settings to migrate selected components from source site?

Content (please ensure you mask any confidential information):

Adding screenshot for reference.

Version (include the version you are using, if applicable):

26A

Code Snippet (add any code snippets that support your topic, if applicable):