On Sunday, 29 September 2019 18:44:27 UTC+1, Mike Halmarack wrote:
not to short to reach it, just too short to open the lid and peer
downward on the contents.

In that case, fit the new midway shelf as suggested, but put it on pull-out runners :-)

That way it won't need any empty space above it for the lid to open either.

Owain