Thanks for the response suckiden.
Yep the option you’re referring to is exactly the same one as I’ve been using within the print dialogue.
The problem with the plot option, for me, is that each layer is plotted as a separate output file and there doesn’t appear to be an option to change this. The print dialogue, on the other hand, gives you the option to output as one page per layer or single page. The export to SVG option also has this.
This is important for me because I am etching my PCB at home, so I need all of the output layers I’ve selected printed onto one sheet of tracing paper.
I guess the plot option is what you would use if you wanted to send gerber files to a fab house?