Our first duck house has Dutch doors (a top and a bottom that open independently) so that I usually opened only the top door and cleaned and worked on bedding without needing to open the bottom.
This is no inconvenience, this is exactly what the Duck Forum is for.
I haven't hatched eggs, sometimes they come out mostly drakes (boys), and that is unsafe for any females. A recommended male to female ratio is 1 drake to 3 or more females. So if you are hatching, you need a plan for...