If you were wondering how to add your own GIF into the editor, just follow these simple steps.
Insert "Image content Block" into one of the structures in your template.
After clicking on the Image content block, you can upload your own image or GIF.
The maximum size for uploaded Images and GIFs is 2MB.
If you want to use GIFs from the Internet, just insert GIF content block and you can browse GIFs online.