I have a main parent page called Products on an e-sho that I'm developing.

Under that mail menu parent page several subpages and subpages of subpages are children of it.

I created some custom Panes layout and placed specific modules that belong to that main parent page.

Does anybody know how to apply / copy that layout to all (or some) of the sub pages in one go, in order to avoid the rearrangement of the subpages' modules in those panes.

Note that the same modules exist in all children subpages.