Not really like you are expecting.
When you create a PCB in the editor it will be an electrical representation of your schematic. That is 1 to 1. If you duplicate your board in the PCB editor which you can do you will no longer have that 1 to 1 relationship with the schematic.
What you need is a cam editor to create your Panel from the gerber files you created in the PCB Editor.
Normally when you send your gerber files to a PCB Manufacturer they will create the film for you from the gerber files.
Another way to think of it is this. The schematic and PCD contain electrical information such as Nets. The gerber file is just a graphical representation of your electrical Cad data.
The gerber file does not contain any "electrical" information per-se.. It is just a graphic.