Dual fixed layers for scrolling

Hi,

It would be great if there could be a FIXED section below SCROLL in the layers for a scrolling view. Sometimes you want to have something fixed, e.g. a specific background, fixed below the scrolling content.

It would be like this in the left side layers panel:

FIXED
SCROLLS
FIXED

Thanks for sharing this idea/feedback. Out of curiosity, are you able to nest the bottom fixed and scroll layers with another fixed layer above it?