Photoshop Questions 1
How to Merge Layers in Photoshop
Using Keyboard Shortcuts to Merge Layers in Photoshop
This video looks at different techniques for merging layers in Photoshop.
This video is in response to a common view question.
Photoshop didn’t have layers when it was first released and perhaps this may explain why there are, by default, no straightforward ways of stamping the image to a new layer.