Tjyylli

I am afraid that Gimp doesn't include it because it is tedious. It is simply not the appropriate way of aligning elements when you are designing, though I recognize that sometimes it is useful as a short-cut. Anyway, the best (correct) approach is with guides:

A) Step 1 - Create the guides

1. Go to Image->Guide->New Guide


2. Specify if you want and horizontal or vertical guide


3. Specify the number of pixels


4. Repeat the procedure for another horizontal or vertical Guide (you can also do more guides to specify width and height)

Alternatively, you can also create the guides dragging from the rulers:

1. Drag down (starting from the top ruler) a guide to the Y coordinate you want.


2. Drag down (starting from the left ruler) a guide to the X coordinate you want.

B) Step 2 - Move the canvas

You can use the moving tool.

1. Select your Layer


2. Go to Tools -> Transform Tools -> Move


3. Drag the Layer to the guides. Gimp will give you a hand with the exact pixels.

One of the design principle is that you should have things align in your whole project. Reducing the number of alignments (guides) helps you getting a cleaner design. I think this is why gimp does not include a tool to specify the exact coordinates. If you want to follow this design principle specifying exact coordinates one by one becomes just a tedious labour.

There is a script to do this that can be download from the GIMP Plugin registry. It is called:

Move Layer To (download).

To install:

1. Move the script to %USERPROFILE.gimp-2.8scripts directory on Windows, ~/Library/Application Support/GIMP/2.8/scripts on OS X or ~/.gimp-2.8/scripts on Linux. (Official instructions)




2. Clicks Filters -> Script-Fu -> Refresh scripts.




3. The new menu item will appear at the bottom of the Layer menu Move to.

1. Pick (alignment tool).


2. Make it Relative to Image.


3. Click on your layer (in the canvas).


4. Enter X in the Offset field.


5. Click on Distribute / (left arrow).


6. Enter Y in the Offset field.


7. Click on Distribute / (up arrow).

That's it!

I'm using GIMP 2.6.11.

With these lines of Python the active layer can be moved to an absolute position, like (32, 64), from the Python console:

>>> x_new = 32

>>> y_new = 64

>>> img = _[0]

>>> layer = img.active_layer

>>> x_off, y_off = layer.offsets

>>> pdb.gimp_layer_translate(layer, x_new - x_off, y_new - y_off)

Alternatively, if you only want to move the content of the layer:

right-click,
Layer > Transform > Offset

or Shft+Ctrl+O

There's a very convenient way to do this available since the Gimp v.2.10:

1. double click on the layer you want to move (or right click on it
   and select "Edit Layer Attributes")




2. the "Edit Layer Attributes" dialog will show up and there you can
   change the X/Y offsets to your needs

Simply easy like that! :)