roll up stack

[oreooreo]

On the DM41x, is there a way to roll the stack up? RDN, obviously, for down. The original documentation [1] shows the icon of the button but no equivalent alpha string.

I could just do multiple RDN to get the same effect but the 15C has up and down, so I've gotten in the habbit.

1. https://literature.hpcalc.org/community/...qrg-en.pdf