I believe that there is no direct way to move components between workflow groups on the KNIME Server without breaking the component’s update link. Moving a component to a different workflow group will result in a broken update link. A workaround would be to duplicate the component within workflow group B. The duplicate would have its own update link within workflow group B. This means that if you make changes to the original component in workflow group A, you would need to manually update the duplicate in workflow group B to reflect those changes so both components are similar in functionality.