layer transparency in another layer also

[Saphotoxu]

Hello everybody from Hungary!

How can one layer ("holes") to prepare,
(For example, a small square)
which shows through every layer, but the hole location is not fixed?
(Actually a hole image ...)
So: all layers hole in the place, but only have to move one layer.
(or at least make the background transparent in that place ...)
it is possible?

Thank you in advance for your answer.

(I do not speak English well,
Thank you to the google translator ....)

[Antonio]

i don't understand exactelly, did you have a sample ?

you can add a blank layer and delete a square part to create a hole

[Saphotoxu]

HELLO!

I thought
absolute transparency on every layers.
but at least on the background.
(how to upload a picture?)