Flexible Layout
If you want to include a component in another component or project, you can determine whether the layout of the included component can be edited in a block diagram editor or project editor (flexible layout). You can enable or disable flexible layout for each class or module individually, either in the component manager (see Activating/Deactivating Flexible Layout) or in the layout editor. By default, flexible layout is deactivated for newly created components.
See also
Activating/Deactivating Flexible Layout