Start to drag the layout name in the list and while dragging it then you press and hold CTRL.
You will see a small + symbol next to the mouse cursor.
Do not let go of the CTRL key until you have dragged and let go of the file where you want to copy it.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11