Structure-changing of Gif and Apng after Being Imported

If a GIF or APNG is imported with a specified loop count, then the structure of the object will automatically change:

• Action Menu: The file become a prop if it contains sequence technique. Also a command will be added into the Action Menu.
  
• It is evident that all the image frames are converted to sprite elements in the Sprite Editor.
  
• You are free to launch the prop to bitmap or SVG editor and edit elements.
• You can also launch the prop to bitmap or SVG editor to edit Action Menu Commands.