The center layer if you are talking about GIMP is the original layer and you delete the original layer and keep the background copy and it will add the layer. If you have any more ?'s about GIMP message me and I will help you.
Shift + Ctrl + N
You open up the pic and then click the layer button and then click add layer and the layer box will come up.
Start a new layer. Make sure it's the lowest layer. Select it. Do whatever you want to do to it.
can you save as .psd?if you can then do it and send
Select the Move tool, and click the layer you want to move, then click and drag to move it. ;)
In the "Layers, Channels, etc" window, right click on a layer and click delete.
After opening your image in GIMP, you should see a menu bar at the top with options such as "File", "Edit", "Select", etc. One of these is "Layer". Select this and then select "Scale Layer" in the resulting drop-down menu.A dialogue box should appear. Enter your desired values and click OK.Voila. The effect will be applied only to the selected layer.I hope this has helped you!
You have to use the same layer to dodge or burn. It won't work if you use it on a new layer.
They mostly do the same things- but in Photoshop many actions can be done in a separate layer ... the end results may be the same, but in Photoshop you can go back and change things to a deeper level than you can in GIMP.
You can start Gimp by going to All Programs and selecting Gimp
gimp