Copying multiple layers

I’ve searched through the manual and I could possible be doing something not possible.
I;ve got about 20 layers with drawing on them, and I want to take all 20 of those layers and copy them to make 20 new of the same layers, except as new drawings without having to do them one by one. Is this possible.
Would be a massive time saver.

Thanks,
G

Select all Drawing-Layers you would like to copy…
Right-click / Duplicate Selected Layers…

Thanks. I was clicking over the drawings in the timeline so I was looking in the wrong spot.