When you perform a calculation-intensive action in Falcon, Falcon calculates the changes in the background. While Falcon is calculating, you can simply continue working. During the calculation, the reload button in the sidebar rotates. As soon as a calculation is completed, a green dot appears in the middle of the reload symbol. Click on it to display the changes.
Among other things, the following actions lead to calculations in the background:
Entering activities and effects and subsequent aggregation
Copying tree elements
Creation of effect calculations