Answered
selection
hi i'm a newbie in photoshop
what does the icon means? i want to move only the selection. but 
after making selection its moves all the picture not only the selection
hi i'm a newbie in photoshop
what does the icon means? i want to move only the selection. but 
after making selection its moves all the picture not only the selection
It means that the image layer is a smart object. Here is some explanation:
Work with Smart Objects in Photoshop
If you google you'll find tons of tutorials about using smart objects.
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