All the levels in GIMP to mark - so it works really
The solution is hidden in the layer Manager of the GIMP, you can concatenate multiple levels, and thus at the same time edit:
- Start GIMP and open an image with multiple layers. Another picture as a layer to add, you can use the key combination [CTRL] + [ALT] + [O].
- Now, open the layer Manager with the combination [CTRL] + [L].
- Now you can see the different layers of their graphics to each other listed. By default, the eye icon of each layer is activated, the level is so visible. To the right of each of these symbols, you can activate a concatenation of the level, in the example (see image) are concatenated "level 2" and "level 3".
- Linked layers you can edit at the same time, or move it.

GIMP: layer Manager
Dear GIMP or Photoshop to use? We have compared the two image-processing programs for you.
