Collections act similar to a Pinterest board which is a quick way to collect and display animations that exist in our projects and folders. It is a great way to showcase animations to the stakeholders.
As you hover over an animation thumbnail, you will see a small grey box at the right top corner. You can select one or more, then you click the Add to Collection button at the bottom. It will ask you which folder in Collections you want to add them to. After selecting, you click the Add button. We can add or remove animations. By removing, the files will not be affected or deleted.