by Julieanne Kost
PSCS5 – In order to preserve object coordinates when pasting from one document to another use Edit > Paste Special > Paste in Place.
Another feature often overlooked is the ability to past content into a selection. To do so, make sure that the document has an active selection, then choose Edit > Paste Special > Paste Into. The content is pasted into the center of the selection and, at the same time, the selection is converted into a layer mask.
Edit > Paste Special > Past Outside also creates a layer mask from the current selection, but inverts the mask as it pastes the content.