Another not exclusively-organ particular, but something that affects contrapuntal keyboard writing to be sure: forcing Dorico to display rests in each voice. I’m attaching a screenshot of a piece I am working on now. You’ll see that in the left hand there is only one rest at the end of the measure although there are two distinct voices and I have made a concerted effort to add a rest in each voice. I did not find anything in engraving options when clicking on the rest that does show, nor did I find anything under the rests category of the engraving options menu as to allow for both rests.
I think this may also be a bug, but I cannot get the accidentals of the Eb / F# to switch places. I think it is proper to have the # closer to the F with the flat symbol on the outside (it is also this way in the source score I am transcribing.) I tried adjusting the voice column index but that wants to switch the noteheads even when I exclusively click on the flat/sharp symbol in engrave mode.