The Pin tool lets you pin a component to fix it in place in the active design in Fusion.
When you Pin or Unpin a component, a feature is created in the timeline.
These two tools can seem similar but they have several key differences. Ground To Parent defines an inherent fixed relationship (similar to a rigid joint) between parent and child components while Pin fixes the component in place in the design itself.
When you pin a component:
When you ground a child component to its parent: