Save/Print Illustrator file as multi-page A4 PDF & retain the layers

I have a single large artboard that I want to save/print as a PDF file which has BOTH

a) the 'Tile Full Pages' into A4 print option

AND

b) the 'save as pdf' option of "create acrobat layers from top-level layers"

I seem to only be able to have one or the other feature.

Either I use the print to PDF option and can get my multi-page A4 PDF...

OR I use the save as option and can choose to retain the layers to turn on/off in the PDF file.

I would like it to result in a PDF which has multi-page AND still has the layers.

Is this possible and can anyone point me in the right direction?